with respect to steve's post, i also personally get annoyed at speculation posted as fact, etc. however, annoying nerds like me (probably a fun / productive activity) isn't the issue, the issue is that it's being posted on the internet which then becomes googleable as some sort of authoritative source of information, and then "facts" spread by being copied across different mediums. It's different than talking to your friends in a bar or email.
even i've said stuff that ended up being wrong, my only point is to put in some due diligence (e.g. at least a quick google, doesn't take hours) into looking into something if it's gonna be posted. also, you often end up learning about interesting things / connections you never thought of before.