The right not to be ignored is, I think, part of the right to free expression.
agrote, you simply don't understand freedom of expression then. Your freedom of expression is not mitigated by having others ignore you. Freedom of speech doesn't mean nobody's allowed to hang up on a telemarketer or filter spam. It means the government will not prohibit and punish the expression. The people are free to ignore at will.
The same is true here. You can express yourself even if people ignore you, and insisting on a "right" to have the site prevent them from ignoring you is as absurd as it is unrelated to free speech.
Controversial opinions will do nothing to prevent the peaceful coexistence of other users on Able2Know.
I didn't make that claim. A big reason I made these tools is so that people who have such visceral reactions to controversial opinions can just ignore them instead of clutter them with their censure or try to get the site to censor them.
By making the tools easier for the different preferences we can be more flexible about what is censored by the site. Now we aren't trying to censor some expression that we used to because we expect the user to be responsible for it if it bothers them.
Users should perhaps have the right to ignore abuse and personal attacks, but not relevant points of view.
Users have always had the right to ignore whatever they want, and there is no way for you or I to change that. Now they just have tools to do so, but there's still no way for you and I to decide what others should ignore. And what I'm trying to have you understand is that you have no right to try to do so.
The people at Able2Know have made their site significantly worse, and I don't understand why.
You'd have to understand the notion of subjectivity and free speech to get it, and I'm unconvinced I posses enough patience to get you through that impediment. You portray this as censorship of free speech when it is, in fact, a great reduction of censorship due to the greater individual freedoms.
I for one, would have no problem arguing with you here. The people who put you on ignore are going to be the ones who were already trying to ignore you. The people who want to discuss things with you will continue to do so. You sound like you just want the negative attention that you used to once complain detracted from your "debate".