That Discord communications can be exfiltrated in this specific set of circumstances (again, something I already said) does little to change that Colibri is implemented in the least privacy preserving way possible, short of publishing directly to every news and intelligence agency on your behalf, and does little to make that very clear in the first place.
my point is: you don't get that in a public discord. and i believe that most discord servers, those for games anyways are public. only small team discord servers are private. privacy on discord is an illusion. i also would not trust discord to keep any messages private even from a private server.
you seem to imply that just by looking like discord colibri promises the same privacy options as discord. why? colibri does not present itself as a discord alternative. and although the line "privacy when needed" was misleading, in the FAQ they clarified that there is no private data. (to be sure i checked the site as it was 2 weeks ago: https://web.archive.org/web/20260311020805/https://colibri.s... )