I haven't seen any Gamblig Platform who used Telegram for Promotions, most I know is that they use Discord.
Do you have any Idea why they don't have any Telegram Communities? and why does it seem they don't use this platform for their promotions?
We don't know but there can be countless reasons.
-They can communicate p2p with potential clients, telegram is something that not all users have downloaded already.
-They believe it's not better to use telegram since they don't trust the users there or might have other issues.
-at the same time in discord there are genuine players, players who care about the gaming and such therefore better option for them
-personal preference
- maybe they know something that we don't??? Something about marketing ?? If the business is blooming I do think that these gambling companies are finding good people to work with.
It doesn't matter where you can advertise , what matters is , if it's working out for you, your company and what are the stats ??
If they keep using that for years , then I do believe that it's good for them. There are even many fake users and scams on telegram.