Two ways to easily stop this:
Threads can only be bumped once a day as long as someone posts in it. Bump can be made random to make it fairer to all.
Get rid of the Alt Coin Ann board as it is and every coin gets their own sub board there. We could maybe charge a fee for this privilege. Most coins are spending a lot of money on promotion and bump bots so I'm sure they'll pay a fee to have their own sub board/url here.
Either of these options will make paid bumping become useless. Something does need to be done about it because it has become a huge problem. In the meantime users can report obvious bots and they'll be nuked.
You where approached about the bump services on telegram not so? Then go on to that platform and do the needful.
The moderators here can not stop you from getting wooed into some service on other social media platform.
But if you can get the forum profile name of this users they can be tagged If they went against the rules
This isn't a problem with telegram and they'll do nothing about it. It's about how paid bumping effects others here and those that don't utilise it are going to be put at a disadvantage so we need to find a way to stop it here.