Hello Moz Community,
At first I wanted to say that I really like the Q&A section and that I read and learned a lot - and today it is time for my first own question 
I checked our backlink-profile these days and I found in my opinion a few bad/spammy links, most of them are auto-generated by pickung up some (meta) information from our webpage. Now my question is if I should dasavow these links over webmasters or if these links shouldn't matter as I guess basically every webpage will be picked up from them. Especially from the perspective that our rankings dropped significantly last weeks, but I am not sure if this can be the real reason.
Examples are pages like:
https://www.askives.com/ -Auto-Generates for example meta descriptions with links
http://www.websitesalike.com/ -find similar websites
http://mashrom.ir/ -no idea about this, really crazy
Or we are at http://www.europages.com/, which makes sense for me and we get some referral traffic as well, but they auto-generated links from all their TLDs like .gr / .it / .cn etc. -just disavow all other TLDs than .com?
Another example would be links from OM services like:
seoprofiler.com
Moreover we have a lot of links from different HR portals (including really many outdated job postings). Can these links “hurt” as well?
Thanks a lot for your help!
Greez
Heiko