>There is one drawback to the Twit filter. If someone who is on my list responds to one of my posts, then I never see it (right, that's the point). But, often then I think others will not respond as they believe it has already been answered. What about keeping the person who is Twitted from being able to respond directly to you? Just a thought...

Is this the only drawback you could think of? Other drawbacks:

Putting someone in your twit filter is actually an act of insulting that person because you call this person a twit. (Repair: Ask Michel to rename it to People Filter.)

The filtered person has probably no knowledge that a filter is in effect, may continue to react (negatively OR positively) and feel upset because the other person does not react back. (Repair: Ask Michel to enable an individual to have insight in who currently filter him/her.)

In a discussion involving three or more persons communication will gonna hamper seriously if one of them filters the reactions of one other. (Repair: Ask Michel to enable people to have insight in who currently filters who in that specific thread.)

Putting someone in the filter is currently effective for the whole UT only. Political, religeous or any other type of dispute that leads to filtering will therefore also cause filtering in the technical sections. (Repair: Ask Michel to implement filters per section or even per thread.)

Putting someone in the filter does not prevent that the filtering person continues to make comments that (s)he may be sorry about later. (Repair: Ask Michel for an opt-out button that will make it impossible for the individual to further comment in the thread.)

Or ask Michel to remove the filter entirely and install some serious, qualified and accepted moderators instead.