amok: if it was my choice, then any game should not come with any patch, but there could be a sticky in the game forum with the most used / best liked paches
There should be a difference between strict bugfixes and patches that also make other changes, even if condoned by the devs or it's a matter of implementing content present in the game files but inactive in the original game. A strict fan bugfix that's checked and approved would count just like a patch created by GOG or any other entity dealing with the relaunch of an old game, which may well include such patches as part of the effort to make the games work properly. But anything past that definitely has no place in the actual release, though if checked and approved by GOG it'd be nice to have it as an extra for those who want it, so people will know it's sort of official for this release and not need to grab it from other sources, which they may be wary of and which may vanish at some point.