Plane Sailing
Astral Admin - Mwahahaha!
Personally I hope they just stick with the 1e solution here. it is a classic magic power, when its use is limited by spell slots there is no problem.
3e sleep was significantly nerfed from earlier editions. 4HD instead of about 10 in 1e. The 1 round casting time instead of a standard action is the real killer though, because it means there's a round of waiting before the spell goes off. Color spray is a lot better.Let's look at Sleep first. Okay it affects a total of 4HD creatures. 4 1HD creatures, 2 2 HD creatures etc... Now they get Will saves, it requires a standard action from a comrade to wake them, and if they are hit they awaken immediately. Sure you could coup de grace but that takes a full round action. What's wrong with the Wizard sleeping enemies while the others in the group run up and finish them off? Would that be the same as controlling the battle field like 4th edition Wizards can do? Not seeing anything at all broken with this spell. I have used the spell several times and I can tell you that it doesn't always work and when it does it's not game breaking.
4 is only an issue if 2 exists. Without scribe scroll or wands of utility spells, the ability for a wizard to use one of his precious spells to prepare knock or invisibility is fine, it has no impact on the rogue. (presumably you would also want to remove traditional magic items like chime of opening too?)
reduce damage of damage-dealing spells.
One option could be simply to prevent wizards from 'nova'-ing by limiting spells cast to one per encounter. In game world terms, require a five minute rest between castings, due to the major exertion.
The 2e sourcebook, A Mighty Fortress, multiplied all casting times by ten ie segments became rounds. So Meteor Swarm, with an original casting time of 9 segments would now take 9 minutes to unleash! That's probably a bit too harsh combined with spell disruption in combat, but it achieves a similar effect.
Do people not pay attention to actual gameplay when it comes to Knock or are those people just stuck on internet theorycrafting?
The limitations of Knock have already been presented. It doesn't matter if you have 1 Knock or 50, the spell doesn't eliminate the traps that go with it.
A party would have to be completely dumb to allow the Wizard to walk up and use Knock on a door first and not let the rogue search for traps first and then allow him to unlock the door.
Something else that people need to understand is the fact that Open Locks does not always equal a rogue. I know plenty of people who made rogue who didn't put any points in the Open Lock skill. A rogue will always be he king of utility with his UMD skill.