If you are searching for 2H7XX8
or A4O0YC, I have blacklisted all *.se domains from submitting comments.
This appears to be a new spam tactic, or combination of tactics. The first is to submit a meaningless string in a comment, which is used with a search engine to find sites where previous spam messages have been crawled. The second tactic is to link to seemingly harmless urls which are actually spam farms full of PPC crap (Porn, Pills, & Casinos).