Just bumping this and want to give a few tips on spotting spammers.
If there is links within their first few posts please report it as it is most likely spam. This would be especially true if they format text with a link
within a sentence as I've done here. Also note they will frequently use links in signatures which is another indicator. If the post is not within the main topic here which is coal that is another indicator.
These by themselves don't necessarily mean it's a spammer. Please don't take it upon yourself to label a post spam, instead report it.