It would seem not, Vult. I awoke to another dozen of these new 'memberships' this morning along with at least half a dozen new threads started by them, and spent my first coffee of the day clearing up their mess. Enough already!
I have reset the membership process so that new members have to apply to the Three Caballeros (Peepsie, Mince 'n' me) before being allowed to post any silliness on the boards. Hopefully this will deter them from even applying, but at least it should avoid their presence being felt on the boards. I have made this decision unilaterally 'cos two Caballeros are still in their pit, and if they over-rule me so be it.
I don't think it will deter any serious applicant from joining our happy band (I estimate we get one of those every couple of months perhaps), and for the time being, I think it's a reasonable measure to take, and can be reversed at any time.