What if one uses channel backup file to ask the other node to force close a channel, but the transaction gets stuck forever then due to high fee environment? Wouldn't the acceleration service seem like the only fast and lucrative option to move forward then?
Re: the danger of out-of-band payments and anchors: https://petertodd.org/2023/v3-transactions-review#anchor-outputs-are-a-danger-to-mining-decentralization
I just noticed that someone who had a anchor channel open with me force closed it, using ViaBTC's transaction accelerator to get the transaction mined without spending the anchors. :/