I do think posting a pic of your quad to go along with your diagnosis should happen. I've never had cellulitis, but I'd imagine it should be very noticeable.
I'd think if there was a batch of straight up unsterile oil, we'd see members on other forums posting about infections. I'm not on Bostons forum and PM is too moderated to trust, but I haven't seen anything on SST. I personally believe if anything, maybe a piece of a filter or stopper assuming all precautions were taken before the injection. Could it still be from crap gear, absolutely.
@Pharma the accusation you made against the guy being a shill is ridiculous. I know you've been around on other forums for years with a decent rep, but this has been one of the worst intros for a source already established for years outside of meso. SP2.0 made a great point about triple B turning things around, I suggest you follow thru with your commitment as a start and make it a point to be here for issues.