If memory serves me right, Last-Call (subsequently reregistered as COBO) caused concern because of his incessant posting last autumn. I don’t know about him being a nuisance flagger. The fact remains that BM1 was suspended and then reregistered several times under various names, some of which were live simultaneously. There is no getting away from it that after I had raised the recent malicious flagging of innocuous posts on BW3 through my secure account that the flagging nuisance ceased and BM1 etc etc etc was re-banned.
I am pretty sure it was him and regards your final comment…bang on!