Comment by josephg

Yep. As well as what Toomim said, eg-walker (another text crdt algorithm) doesn’t need or use tombstones. With eg-walker we just store the history of all changes (kinda like git). Some changes are deletes. The changes are only used for merging old stuff, so if you’re happy to set a cutoff (or have some coordination like antimatter) you can delete the operation history and all the overhead that goes along with it.