Also: Town Roleblockers wouldn't Roleblock a claimed Watcher/Tracker. I assume good play on the behalf of any hypothetical Town Roleblocker, so the move to Roleblock Hero would only make sense from a Scum perspective... and that assumes PX put in four Roleblocking roles, two on Scum and one on Town, and one Global Roleblock on Town.
The odds of that exist, this being PX, but since we also have evidence that NOT EVERYONE IS A ROLEBLOCKER, I think we can fairly assume there's not two roleblockers on Scum.
Also, on Serela, I am calling his claim into doubt: On Night 2, PX offered to end Night early if a majority was in consent. This would hypothetically reduce the time available to the one person who can act after Serela jazzed 'em with his role, but that seems a weird stance to take for a moderator. I'm not inclined to buy the claim, especially the naive belief that anti-Roleblock actions would be unblockable. His conduct as outlined earlier (pet case for all of Day 2/3, not making general sense, being even MORE of a dead weight to Town than normally and defending Raitaki indirectly) also raises my suspicion, so I'd like Serela to give answer on the specifics of his rolepower, what the flavour is, and why he believes his action would be permitted Night 2.