I agree. While you're at it, stick a 'report' button in the article comments sections. A couple of times I've had to go to a user's profile and report a forum post (directing the CC to the relevant page). This obviously doesn't work for spammers who may not have posted in the forums.
But boys will be boys and girls have those eyes
that'll cut you to ribbons, sometimes
and all you can do is just wait by the moon
and bleed if it's what she says you ought to do
Thanks for brining up an interesting idea. We will consider adding "thank the user" and "report the user" features.