Michael
I Love YTtalk
I have noticed this a few times, I go to my YT inbox and I see a comment, saying thanks this help me or something like that and then go to see it on the video page and the author has removed it, I mean what is the point in commenting to remove it? I understand when you said something wrong or offensive and regretted it like I once had someone write something like "this sucks" then removed it and then put "thanks for this". I get those ones, maybe they decided they were no longer hateful lol but the others, I mean why remove a normal sounding comment? Do you get this at all on your videos?