This is probably correct the instant you get a whiff of bad faith or differing fundamental principles that you aren't going to be able to change, and if you do try, it'll devolve into an argument, but I've been involved in significantly longer threads that were just people asking for advice who had a lot of questions that weren't easily answerable with a google search, as well as deeper discussions that were genuinely made in good faith and made me question some of my assumptions. The latter is quite rare, but they certainly are a thing.