What you need to know is to simply not take this community forum too seriously. Just like how you talk to other people on some social media group — as long as you follow the rules by not spamming and scamming and all that, you're good to go.
Some of them don't know exactly their objectives before coming to the forum, I believe that one of the things that make some people scare true in forum is when they know what they want, actually what you portray is nice but the thing is that some of this people doesn't study forum very well to know the difference between forum and other social media, in forum plagiarism is been accepted, so it's in addition to what you have said already