As an instance admin, you can see who voted what. Moderators are also able to view votes in their community. See discussion regarding vote privacy here: https://github.com/LemmyNet/lemmy/issues/4967
Telegram's secret chat's encryption algorithm is made by Telegram themselves, which is already a red flag. You generally don't want to roll out your own encryption algorithm if you aren't cryptographers, which Telegram people aren't. Their MTProto is also not proven, so you'd rather not want to use it.
Just checked that subreddit out. Seems like the perfect place for necrophiles. That is just disgusting to look at. Though I don't think it is something that should be removed.
The repo is just full of configuration files and no actual working code. The backend code does not exist. The guy in mastodon thinks that dan forgot to upload his code to the github repo.
Posteo supports PGP encryption with a PGP key you have when an email comes into your inbox, which then can be decrypted by your client. So it is doable.
Whatever your goal is, there most likely is no such instance that satisfies your definition of "freedom of speech". You should run your own instance where you have full control. Since most instances wouldn't federate with such an instance, a relatively cheap VPS will do. Even some old computer you may have lying around.
I agree. Revolt is a good alternative to Discord. Matrix does not feel the same as Discord, but just a WhatsApp alternative that is decentralized and federated.
LW's user base accounts for about 36.4% (as of writing this) of all Lemmy users (spread across approximately 570 instances according to FediDB), which is too large.
As an instance admin, you can see who voted what. Moderators are also able to view votes in their community. See discussion regarding vote privacy here: https://github.com/LemmyNet/lemmy/issues/4967