If you're just sick of the babble on a channel, it is possible to detune it. I do it sometimes to 200 and occasionally to 2 when the politicking gets a bit thick.
Regardless of reasons why or who the OP is, a squelch list that has a limited capacity on it in this day and age is somewhat silly. Permasquelch, I get why he hasn't implemented. I don't agree, but I understand why.
Sometimes, you just don't care what some prolific talker has to say, and bustr, explain in detail (HA like you'd do anything else) what in the world squelching someone does to impact their gameplay? They get no message, they continue to prattle on, you just aren't exposed to whatever they're spewing.
Wiley.