especially if your progress pics are stolen, but you can (and should) take action against any spammer.
First, block the blog and report as spam to tumblr:
Second, report to Clickbank for DMCA violation (for stolen pics), spam or whatever other offence has been committed.
Most of the spam on tumblr is to do with Fat Loss Factor, and the affiliate system is run by Clickbank. Clickbank actually seem pretty good about taking prompt action, as the motherfucker who stole Lexxa’s pic yesterday just found out.
Check the link first and if it is Fat Loss Factor report it here:
Even if it’s a different product it quite likely is still related to Clickbank so investigate and take action accordingly.
If your watermarks are removed from the pictures (as happened to Sharee aka FuneralForMyFat), check this link… they can be fined heavily and you may be entitled to damages.
Tumblr is OUR community these motherfuckers do NOT get to steal our photos and then spam us with them.