I fear that anyone who lifts and sells recipes from this forum or anywhere else is running very little risk, sadly. The cost of launching an action for copyright infringement in the Crown Court must be seriously HUGE, like tens of thousands of pounds. I doubt if the small claims route includes copyright type theft. Then, even, if you had your day in court, the defence barristers would probably find gaping weaknesses in any claim and the case would probably be thrown out at even greater cost, with defence fees added.
On the other hand, recipes were printed here from The Curry Secret until the publisher registered a complaint, so aren't we (collectively) almost as bad as the eBay sellers?
Is there a case for turning this forum into a members-only group, so only a few dozen people can read the recipes? Members would be invited, based on trust. I don't mean that anyone could join just by paying a fee.
Regards
George