Nothing personal, B.
Here's the reason I disagree. I know it'st just pixels on a screen and that a bit of argumentation can be interesting and all that. But consider this- there are things a person can say that can be very hurtful. And they are that way because they are meant to hurt.
If you have posts saying that someone is doing something illegal or unethical or did something bad in some way or is a bad person or shouldn't have rights or anthing else, then that's not good. It can hurt the recipient and as I said, it is meant to. And in some cases, things can be said that are actionable.
I know that hostilities are common even on fora that don't deal with controversial subjects like Scn. Gardening, IT fora, and so forth. I was once on a cooking forum and I was trying to get these dishes that were discontinued. I was told about replacements.com. I tried it and found some. So I went in on that thread (usenet) and just posted thanks, everyone. Got what I wanted. Next thing I know, some regular pops in and starts screaming about spamming and she was pretty confrontational. So yeah, it happens, but it doesn't do any good for anybody. Her contretemps did not shed any light on the subjects of cooking or dishes.