I automatically click on a submitter's name if I don't recognize it. If that submitter has only 1 karma point and is obviously new to the site, that submission gets extra special scrutiny- meaning if it is even remotely promotional I assume it's spam.

If you want to jump into the community here, esp. if you've already been lurking for a while- don't do it by doing a submission (unless it's a killer submission)- add some nice comments please!