I just stumbled on this restriction when I tried edit a typo (it is just a missing article, nothing very important.)
However, I have a few times edited things like changed image or sample links in some of my replies that I consider important and valuable for the community (for instance, in posts that contain my personal test results or codec comparison tables for Sebastian Mares' listening test threads).
I am not personally happy about this new restriction, though I understand very well the reasoning and need for it.
I wonder if it could be possible to add a new user category that would allow long time members who can be considered as important contributors to edit their posts. Members like Sebastian Mares would definitely belong to this category and perhaps some "less important" guys like me could then request this status.

Thanks for your attention.