I haven't checked the history of BetFury's campaigns, but if it's true they only let them run for specific periods, that's probably to align them with any special events they are having at the same time. Like the current $20,000,000 Crypto Drop.
But that's even strengthens the case for my request to allow referral links in signatures. If the campaign happens to end in a near future, some participants could just to keep it on, at least until they find a spot in another campaign. There's always a chance they could at least earn some referral commission as opposed to having no signature at all.
It is still not clear whether this signature campaign from Betfury will be long or not. However, I personally think that it will last longer than previous their campaigns. At least because the prize pool for this event is so big, and Betfury may well keep the signature campaign going as long as the Cryptodrop app on Telegram is active.
I am also speculating the same, specifically due to the amount of money involved in the crypto drop, $20 million dollars is no child's play to be honest, and the fact that through the crypto drop game, alot of new users are gonna be getting to know about betfury makes it all interesting as well.
I recently joined the crypto drop bot on telegram but looked like the bot was not active the day I did, coming back to this thread now, I remembered and tried the bot again and now, it's working, played the game for the first time today, and I must say that it's interesting, looks exactly like the jump and pass game we usually play on chrome when ever internet service is down, cool idea I must say.