Posted an ad on craigslist and put my cell number down for calls AND text (stupid idea but I've since corrected it) and I got a text from this number that just copied my posting title but added 'still for sale' at the end. Got another text from a different number (323-744-1808) that was the exact same text as the other number, even down to the typo 'stiil' in 'still for sale'. Not sure who these guys are but they no longer are able to text me (made sure of it).