• I don’t think even RMS himself would refuse to participate in something on the grounds that Telegram users are also able to do so. It does not require compromising your free software ideals. By all means point out to them that you believe them to be doing something wrong, but the method you’ve chosen to try and get them to change their ways seems very likely to be ineffective and also counterproductive. It does further divide the community, even if others have already done even worse.

    • It does not require compromising your free software ideals

      By which of course I mean what I think of as free software ideals, which I’ve come to understand in large part through the teachings of Richard Stallman even though I’m not personally such an idealist as he is. He Sometimes he even goes so far as to recommend people to services with non-free software on the server side, so long as it requires only free software on systems that the user controls. Your standards may differ. But anyway, if you had to quit fedi because someone set up a fediverse/telegram bridge I think it would not be a practical way to live. Where you draw the line is of course up to you, but I wouldn’t expect many people to follow you that far from the usual FOSS positions.