Well, at the start of the current skyblock season (season 2 or season 3, idr) Dead and Skully did implement Autosell signs. The problem with them is that it kind of ruins some existing metas such as pshops. If it’s introduced in what’s basically the end of the season, maybe it provides some pointers in what the next season will have.
But who knows, that’s my 2 cents ¯\_(ツ)_/¯