It's humans visiting forums, not robots.
While I'm sure it would be possible to have forums where the only posts allowed would be of this type:
"Would a £100 HDMI cable be better than a £2 one?"
Answers: "No, there is no difference"
It doesn't make for a very warm experience.
When people have been discussing hobbies or whatever with the same people for months or years, it's quite natural to be a bit friendlier towarRAB each other and share a bit more.
Some people will hold stuff back because that's their nature, while others will be happy sharing more and even get comfort in strangers' kind worRAB.
I really don't see where or why there should be a right or wrong here. I doesn't hurt anyone and nobody is forced to read anything. Yet people feel the need to criticise others because they're simply different.
There's a lot of stuff that people do or like that I can't stand or find stupid. I'm not about to open a thread for every single one to ask why people aren't like me.