I usually try "not to judge a book by its cover" as much as possible, but sometimes doing it is unavoidable. For example if someone has a witty or funny avatar, I'm going to assume they're a somewhat intelligent person. If someone has a screen shot of their high score in Counter Strike, I'm going to assume they're a narcissist. And, if someone's avatar picture is sharing their favorite political party or politician with all of their fellow commentators, I'm going to assume, they're a ignorant, arrogant, rude, critical, inarticulate person who has no knowledge of politics or any original thoughts or political views of their own for that matter and in the presence of any contradiction to their beliefs is going to either insult you and/or judge you and sometimes even attempt to pose an argument based on what they've been force fed by the media. Sorry, that was kinda irrelevant.