It's nice that you're having a good memory. It is a sign of a clear mind.

I don't use Telegram or Discord. I have seen that is used before for online communities. But, for me it feels complicated when all information are not in one place. For instance, I have seen some online games before having Discord, Twitter, Instagram...etc. Sometimes, there are information that are found only in one of these places. It is a lot of unnecessary work. But, you may get a better answer from someone who is using them.