Wildwood, that's a difficult question to answer.
From my perspective, when I've been involved in threads over days, I've sometimes seen that I made an error in my reply or missed something crucial. I try to correct it when I can.
From other peoples perspective, there are one or two people on AB who seem to resent my input and do their best to find fault in my replies. Like me, they seem to predominantly lurk around in Science. There was one a few years back that watched me like a hawk but I haven't seen the user name on AB for a few years now.
Now and again, I even get the chance to have a spat with a biologist or chemist on AB. A while ago, an AB user answered a complex question on organic chemistry. The answer given was not 100% correct and I explained why in my post. I found out by chance later, that the answer was posted by a lecturer in my department. She hasn't lived it down!