I don't have statistics to backup my claims, but I hope you do.
I just flagged an answer as spam on webapps.SE. Most of the spam I reported are:
- Posted as answers
- On https://webapps.stackexchange.com
- The moderators are relatively slow to remove it (understandably, it's okay)
I get a spam answer on every question more or less, and that's an insane number. On other websites I very rarely, if ever get spammed.
I try to avoid asking questions on that site because of spam. The other day, someone posted please help me please, with a photo of a trapped women, and it really bothered me. That was the first time I saw a spammer uploading an image; usually they just write text.
Is spam is higher on that site than average or is it my bad luck? If it's higher then why?
BTW, I'm a member on smaller sites than webapps.se, and I don't get spammed. Something is weird there.