We had some lists for ruleset changes but it got complicated after some games. Comparing the current game to the previous one, to the one before that and to civ2civ3... The current LT rulesets are quite different from civ2civ3 and not too many people ever played that. Some kind of list should be done at some point, yeah.
The city vision was indeed a bug in the first place but like few other bugs, it ended up being a feature because it was offering something that was found useful. The cities actually can work on the tiles that can't be seen but they can not be changed without actual vision.
In the past too many games have ended when people kept cities empty and open for anyone to conquer. With restrictinfra off it was even worse. Very easy to kill entire nations in a turn or two. The players can actually still keep the cities empty but at least something should be moved close to them to allow the worked tiles to be changed. Usually workers will do the trick.
We can of course change this setting if people really want it to be changed. Personally I would encourage the players to build better defenses since that's something too many players neglect
Other bug originated features are low ranges for nukes and no v siege units with barracks. Those proved to be useful once the units were reconfigured.