So I left a comment on a fairly legit looking marketing blog. It put my comment on recent comments side bar and it's sticking at the top (awesome site wide although no follow). I noticed a weird thing the last few weeks, I get hundreds of back links from the site in the form of .com/buy-viagara, .com/orgam-cialis, and other BS. Whenever i click on the back link from ahrefs, the page is removed. Literally hundresd of these a day but the pages never actually exist. Anyone know what the deal is, the links also never show up in Google web master tools (probably because they are deleted???). Not sure what to do about this, emailed webmaster and said they would look into it, no response. Should i be worried and ask them to delete my comment?