You may argue that meseta pso2 checking out identities online to criminalize wrongdoings won't do anything because those individuals won't stop under these conditions (typical"it wasn't illegal previously, so why can it be now?" Bull), but we're already looking at the idea that they will never stop, no matter what, so what would the difference be anyhow? Might also make enforcing rules, and respecting the effort law abiding folks make to actually uphold said rules a little bit simpler at least, if ever so marginally.
The hacking website for example, isn't encouraged in game discussion and there is no way to look for a player who's using those tools or bought meseta from a site.
And because posting the links is probably promoting these scumbags, I feel like having a place to they could have an internal database of how they are exploiting their system may be valuable on the long run. Keyword:"inner" just for SEGA about the websites we report.
Like having logs in programming, a lot of time you read them, but when you do... you find out just how simple could it's been solved xD You could try contacting their support staff directly perhaps. Otherwise ingame then there is more then probably an out of sport choice to pursue.
Unfortunately, I find myself at a loss for what to do in the specific case you point out due to SEGA not providing any resources when you understand the offending party, but you don't have a buy Phantasy Star Online 2 Meseta player ID to label them with. It's like, understanding their faces, understanding where they are. . .but not their given names which the player report formats need in order to report any malicious behavior.