Is part of a vendors OPSEC to completely delete all social media profiles such as twitter/facebook/etc. I would fear that if LE was trying to identify a vendor Then LE could analyze how they use grammar and how they list certain things or using lots of periods inbetween sentences and cross reference that against thousands of posts you might of made on social media and they could could possibly find matches with software designed to search on the clearnet. Maybe this is too paraniod. Thoughts? I hope i didn't give them any ideas. :-/
https://en.wikipedia.org/wiki/Stylometry