Do I have to remind to everybody my old warnings? #523570 btw... that's why ek hate me, because I warned people from the beginning.
And this is going to have more consequences, even if stackers will say "ok I will use another custodial account so I will not get FC on me". But that is again, throwing the dead cat in other's garden. Those custodial solutions will have THEIR channels FC and will start looking into WHAT is causing this, finding out that is SN... So what they will gonna do? Will start filtering these SN zaps and block them, making your zaps on SN unreliable.
This system of "hold invoices" is good but should not be used in situations like SN zaps. Is ok for Robosats and things like that where the users are aware that have to wait until is settled the HTLC.
BTW, SN never explained in details how this system will work, so users will be aware. They just mentioned vague information.