I'm not really sure what the original post was about. It sounds like you made a thread praising the redeeming powers of the reputation plugin that the forum has.
In reply to your title, if you need the validation of everyone around you, being anyone involved in any arena of discussion will be hard. It's a forum on the internet. Some people aren't going to like what you say and others are going to be rude about it.
People also say stupid things. If this thread was started in reference to the replies you got for
this post, it surely wasn't personal. If you say something stupid and a mentor calls you out on it, it doesn't mean that mentors on Chief Delphi are prejudice against students. It just means you made a dumb comment.