In fact the novel mechanisms I referred to are in action now, censoring dozens of accounts on multiple front ends. There is a list of accounts on Github that are so censored now. No posts, comments, or even the names of the accounts casting votes are displayed on multiple front ends. While there seems to be good reason to do this, my position has been that accounts should have this authority to censor, and not front ends themselves. The public nodes provided by Steemit, Inc. seem to be the mechanism that prevents such content from being displayed by front ends, and that may be the only reason multiple front ends participate, as they use extant public nodes.

No good mechanism for centralized censorship has seemed to remain long unused, and I do not expect this mechanism to fail to be used for less savory purposes, against other accounts than those on the unreedemable list on Github.

This is bordering on making Steem useless right now, and there's little reason to expect that won't happen soon.