Lately I have been visiting some Stack Exchange sites like Italian Language and similar, and I saw a lot of people (moderators included) tend to comment chatty things like “Welcome to ...”. I know it’s friendly, nice and whatever, but isn’t it against the rules? When I first registered on Stack Exchange, I only used Stack Overflow and I always got downvoted/had my questions closed/etc., for less important things.
Plus, they even ask/answer weird things that on more serious websites don’t exist (if not for just a few minutes) or, if they do, they get downvoted.
There they even get upvoted by a few people (probably just because the ones asking them have a lot of reputation or something) and it’s really confusing seeing this kind of difference between those websites. I love Stack Exchange because, unlike all other Q&A websites, it is constantly being controlled, so you only find quality content; but I think those uncontrolled (or controlled by a few people) communities tend to ruin this brilliant web site.
So my main question is: why do moderators, the ones that more than anybody else should know how to use this website, make such errors?