We run a community product. There is an individual (a little PoS kid) in the UK that is harassing our site for the last 6 months. His daily task is to create a new account, post a bunch of illegal / inflammatory content, get a rise out of people, then get deleted within a few hours by an admin. Then repeat.
His IP address changes every time he creates a new account (either using a proxy or some other similar tool). The only commonality is the top level 92.x.x.x. We've tried contacting UK authorities... while they are interested, they have not provided anything actionable. Meanwhile, this harassment continues daily.
Anyone have experience on how to kill this off? I'm pretty much at my wit's end here and hoping someone who has dealt with this before can provide some guidance.
Thx in advance.