"Not following Debate Club rules" isn't the same as suppressing free speech, though? And is it irresponsible to point out, correctly, that somebody is a bad person and is saying bad things?
I can't help but look askance at the idea that engaging in virtuous conduct could be equated to "debate club rules," if only because it seems to mock the idea of holding yourself to a higher standard. Similarly, your objective declaration that things you don't like are "bad things" and that makes anyone saying them a bad person is, in fact, irresponsible.
Gonna jump in here to note that for somebody who is strongly advocating avoiding attacks on character and non-substantive refutation, you are taking a lot of personal swipes and assumptions of bad faith.
Pointing out that you've misunderstood something is in no way a suggestion that you're a bad person. Likewise, there's no assumption going on; you've misstated my position more than once. Hence, the faith on my part is entirely good.
Not at all. You posted a list of things that might make a person "afraid" to speak and which were therefore outside the realm of free speech - the equivalent of an actual heckler's veto - ranging from attacking their character (regardless of whether such attacks are accurate) to getting them fired from their job to, well, "etc." covers a lot of ground.
I'm not sure what sort of rebuttal you're putting forward here, unless it's to state that someone who feels like they can't safely remain in their home in response to what someone else has said is somehow also a part of the list of things I noted before. In that case, however, you're introducing a key difference, which is that you're referencing how the listener
interprets what was said, rather than what the speaker
actually said.
So we're right back to the Preferred First Speaker Doctrine: once A has spoken, B, C and D must refrain from any speech that would make A have sadfeels and be less inclined to speak ("social consequences").
That's not the "preferred first speaker doctrine," though. Everyone is operating under the same guidelines of conduct, regardless of the order in which they speak. Persons B, C, and D are entirely free to engage in counterspeech of their own. How A feels about their counterspeech is A's problem, and not something B, C, or D should be concerned with. However, they have a moral duty to make their case with regards to the substance about what person A said, rather than about person A themselves (or trying to prevent A from speaking at all). Attacking ideas is fine, attacking people is not.
They are required, morally, to liimit the range of their free speech to politely countering A's points and must not attack A's character in any way (even if A attacked theirs)
Yes.
and certainly may not impose any social consequences like blocking A or choosing to refrain from being in A's company. To do so would be to "silence" A, which is the worst sin imaginable.
They can choose not to associate with anyone they don't want to. But they have no right to make it more difficult for person A to associate with someone else who isn't them; going on a campaign to try and make it harder for A to interact with society is not virtuous in any regard. It may not be "the worst sin imaginable," but it is a sin, to use your terminology.