The music industry needs to die off already.
You know what I find it akin to in the industry I work in and I know this gonna cause some controversy - but the 9-5 Mon-Fri managers we have at work.
I work something called Continental shifts which are basically days/nights/days/nights on a A/B/C/D rota throughout the space of a month.
What I find telling is we run absolutely fine on weekend days and all our night shifts but, we have these what I'm going to call leeches (but the controversial term is.....Office Drones) just like the copyright fuckwads illustrated here that suddenly appear throughout the week and are a general nuisance?
They really don't do anything I can see that benefits the company/industry other than sending emails etc for others to send them a report that's readily available/start bullshit investigation etc.
They make me grumble these leeches :/
Sticker repository? lol, Telegram has that market cornered and you know it :)
https://matrix.org/ is probably the only reasonable solution to your problem but reading between the lines you're inferring that Telegram is dead in the water.
I'm a popcorn fanantic and await to see the, corns?