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I don't know if I would agree with the point that people using it would also be against clicking through paid links. I use it and am not adverse to paid links in any shape or form. To be honest I wouldn't even see them as spam. My using of it was for ad's popping up on videos, etc. Intrusive adverts. I would like to think I know my way around a computer, but if I didn't even realise it will block the paid ads then I wouldn't even think of 'allowing' it. You would have to know that to notice and allow! I take the point though, I just find it curious that it would even class sponsored links as an Ad to block. They aren't an inconvenience.

If you are able to buy all those domains do it! and keep it from you competition, if you already got then, that was a smart move!

There has been a long-time recommendation of 100 links or less. I honestly don't pay any attention to the number of links on a page.  Most of my sites have way more then 100 links on a page.  And, I have some pages that are resource lists - for example, linking out to employers in a certain category.  I have pages like that with hundreds of links per page and they rank #1 in google with better than moderate competition.