Maybe I am wrong but I'm not aware of any sites other than the hive where it was shut down by law enforcement.
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The-HIVE was never shut down by law enforcement, Strike had passed on the keys to Rhodium for some time already when he went down for him flirting with Mexican organized crime. After Strikes infamous Dateline interview registration was disabled for some time because the place got overrun by enthusiasts....
So not a single one of the boards related to drug-chemistry was shut down. Also I have not heard of anybody whos participation on such boards was even mentioned in a trial, computers were seized often enough and most were not encrypted but wide open - nothing.
Anyways, Fentanyl would be the only topic coming to mind which might be problematic for it being a matter of state security - by Bidens presidential order. Which should be rescinded soon as Trump seems to seriously do away with every single one.
Marketplaces - now thats another question and thats the reason bbgate will be taken down by LE sooner or later.
Otherwise: It is a new generation, if they want to do things differently no problem with me and it is not all bad, at least peole on bbgate do not feel entitelt to be spoonfed from golden platters for free....