Concerning the VonC:
To start with that, as Squid has reminded us, a VonC is only binding for elected members and all other votes are non-binding. You could have all the VonCs you want, if the Curator does not choose to enact it, he would act in perfect accordance with the TWCC and that would be it. You cannot even VonC him if he would choose to ignore a VonC since he would have neither abused his authority nor his powers.
Next I wonder why a VonC, assuming that the nature of the VonC would be changed in order that a VonC of a non-elected member would become binding, would be needed in the first place. If I understand you correctly you like to eliminate elected CCT officials, which would leave us with appointed members only, which is pretty practical I think (in case the CCT has reason to exist in the future that is). Now you have a very easy and quick way to become a member of the CCT, just shoot the Curator a pm with your intended project or ask the leader of an existing project whether you could join the team and help. You either get accepted or not and then you would been given appropriate access rights.
Good!
But then you seem to want to make the removal a more or less tedious procedure, by introducing the VonC. In the first place I wonder why people, who get hired on the fly, cannot be fired on the fly also?
If your concern is like you posted the lack of transparency, then why not just add a clause that the Curator or the leader of a team must present the Curia with a written justification of any demotion? Et voilŕ, if the explanation might not suffice the citizenry, they can still take further action.
Then there was the hypothetical case of a CCT member abusing his powers -what powers btw, abuse of LM rights in the Symp?- and the Curator not acting upon that abuse. How likely is that in the first place? And even in the event of such a strange thing happening, the Symp is moderated by HEX, if a CCT with LM rights would go bananas, he would be demoted by HEX in no time, don't you think?
So besides that a VonC seems to me overly complicating a procedure that should be as simple as the procedure to join the CCT, it as well appears superfluous to me.
Concerning the majority thingy and the impact a VonC can have, we've already discussed and have exchanged our different points of view.
I hope that might make my position a bit more clear.