Here’s the example I had in mind then: Someone makes a thread in Sundry Chitchat and wants to be able to update the OP from time to time. The current solution is to nicely PM a mod and say “Hey please change bit XYZ in my post to say YZA, thanks” then wait and hope the mod did what you wanted correctly.
It seems like we’re limiting edit times artificially just in case we get a JV or whatever who decides to go back later and change posts (that will pretty much only be read by new readers of threads btw) instead of just working with trust levels and just knocking anybody who can’t be trusted to not abuse editing down to level 0 or whatever.
ETA: We already have posts that are editable FOREVER, I just edited one to check, they’re just editable by any user who wants to do it.