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Just what I was thinking, a natural link profile what the problem?

Why no follow any link, unless it is going to a porn site that you don't want to be associated with. Al links leak link juice there is nothing to gain by no-following them.

All links use up link juice. By no following a link, you do not save any link juice, you just don't pass it to the linked page. So the website owner has nothing to gain by no following you. The most common use of no-follow these days is to discourage spammers placing links in comments and forums.

did you place the links there? then it may be that the owner of the site will no follow you, Did he pace them there, then he has nothing to gain by no-following you.

Could well be, try viewing as googlebot or bingbot in wmt

If you put them in the footer may be better. you certainly don't want the, on every page.

This is a god read on how page rank works. http://thatsit.com.au/seo/tutorials/a-simple-explanation-of-pagerank

I have no knowledge of doubleclick, but the page will be leaking link juice thought al those links no matter what he does., so there would be nothing to gain from the website owner by no-following you.

Maybe get some international tld domains. There is no problem with having a duplicate site if they are in different tlds

Azure does Linux also. Best set up a virtual machine and select an image, there are many to choose from, windows and Linux.

http://www.windowsazure.com/en-us/

I have had the argument over and over, most say subdirectories are better, but none have produced any evidence to back this. On the contrary
Deb, it really is a pretty personal choice. For something small like a blog, it probably won’t matter terribly much. I used a subdirectory because it’s easier to manage everything in one file storage space for me. However, if you think that someday you might want to use a hosted blog service to power your blog, then you might want to go with blog.example.com just because you could set up a CNAME or DNS alias so that blog.example.com pointed to your hosted blog service. http://www.mattcutts.com/blog/subdomains-and-subdirectories/

What's the difference between using subdomains and subdirectories? When it comes to Google, there aren't major differences between the two http://googlewebmastercentral.blogspot.com.au/2008/01/feeling-lucky-at-pubcon.html

My suggestion get a new host.

I work on windows servers  not Linux, but on windows you can load balance quite easily without the ww2 idea.

I also wonder about the too much traffic, I host at Azure and you can easily upgrade your server at the press of a button, but if the site is written well you would have to be very very busy to need to. Are you using a cms?

404, 410 it does not matter, you have removed the pages that is the main thing.

But to be correct you should use a 410, as they are gone forever, while 404 just means not found.

Yep report it to Google and Bing. Hidden text is against Google guidelines. I would not contact the owner or they may try to get you back with spam likes or something.

https://www.google.com/webmasters/tools/spamreport?hl=en Bing also once had a page, ubt I can no longer find it

This does not look like an error, this is what is supposed to happen. You say this is a "Notice" not a "Warning" or "Error".

I think they are just letting you know it is there.

DA and PA is worked out by SEOMoz, it is not the same as how SE's would do it. Its just a guideline. There are also other factors. a website about dogs with low DA, may outrank a website about cats with high DA for the term puppies.

It may be that one site is seen as more relevant than the other, or do better in some other factor.

as Sheldon said.
A page that is in the Search engine index.

do a search for site:mydomain.com and you will see your indexed pages

I agree, bing for example say only one H1, but for other tags there is no limit, my concern is that it sounds like you my have a problem with keyword stuffing if the page reads un-naturally.

I think you were correct in the first place, there are probably many more pages using the "IN" in their content, so more compeditive

I would not, no on the same page at least. I would expect that the last tag is used the previous tags will be dismissed, but there could also be a spam signal who knows.

All links consume link juice even nofollow links.
What happens to the link juice is the question, does href="#" just flow back to the same page, first thoughts are yes, but then if that is the case, you would be able to manipulate how much link juice flows out of other links but adding more. so I think they may waste link juice. JavaScript links use link juice and there is no guarantee that Google is able to pass that link juice on.

A lot of CMS use this type of links href="#" on a A tag then use the A tag for some other reason, such as a button to fire JavaScript. I believe that if you want a button use a button, if you want a JavaScript link then attach the event to a SPAN or DIV, use A tags only for real links and be sure you know what is happening to your link juice.

If I understand you, you have spam links pointing to profile pages, from there you link to your site.

then noindex,nofollow or removing the intermediate page will solve the issue.