I know Telegram is bad for personal messaging in terms of Security compared to Signal. But, for Piracy stuffs, communities and channels. Telegram is quite good.
Why not? Because it's probably slower, it's yet another propietary service you have to rely on, and it defeats the purpose of using a torrent to start with.
a leeching group is a telegram group in which there are bots which download the torrents you give them links to (usually to gdrive or other cloud storage) these download the torrents faster (since they run on servers) but as the name suggests, do not seed the torrents. and all the torrents you make the bot download are available publicly for everyone in the group. leeching groups were very popular during lockdown, I haven't checked them out for a while though.
the github I linked is such a bot, it can be self hosted and used for downloading torrents (i.e. making your own leeching group)