Why? Because the manager decided to save on transactions and pay 12 sat at a time when the commission was 300-400 sat per 1 byte? Not a single forum campaign puts such commissions on payment to its participants, everyone is trying to find compromises.
The campaign is one of the best and longest on the forum, but the manager cannot afford to pay an extra 20-30 bucks for a transaction? This somehow does not fit with the status of an elite campaign, which is attributed to this campaign.
I will agree because I do not want to be self-centered, nobody will like delay. I noticed that some addresses are still legacy addresses, about 13 of the addresses, while some of the addresses are nested segwit. Only few are native segwit. With native segwit, you can save more than 42% on fee, while up to 50% as the inputs and outputs are increasing like in Bestchange transaction. I mean if native segwit is compared to legacy, while native segwit transaction is also cheaper than nested segwit.
It is just an advice, as Bestchange is accepting native segwit addresses already, native segwit addresses can be requested from all Bestchange campaign participants which will also help because the fee rate used would have been higher if Bestchange is sending to native segwit addresses. Also the fee can be increased, but this is left to Bestchange.