/amslap (even the name sounds abusive)
/amempower is used by admins to give themselves advantages over regular players so they can "own" them. It was toned downed in JA+ 2.3 from ridiculously unfair to just unfair (especially on no-Force servers).
/amsleep is used for more than "time-out". DruggedSith was winning a saber-only FFA on a clan server fair and square. They said "We can't let this noob win" so they used /amsleep on him to keep him from scoring any more points, then laughed at him and said "pwned!"
And to clear up a misstatement, you can refuse to be teleported in JA+ 2.3 but you don't have to "give permission" to be teleported. With JA+ 2.3 you will mostly avoid being teleported into lava, but you can still be teleported into a locked room full of rancors or wampas (unless they use the /amrefuseTele command, which most people don't know about).
It's not good that Red Slushie has abuse-prone commands, but let's be real. The fact that you can count the number of servers running Red Slushie on one hand means any theoretical abuse that happens (if it happens) is nothing compared to the abuse that has occured and continues to occur on hundreds of JA+ servers. Remember, many refuse to use version 2.3, so there is still ampunishing, amslaying, and amtele-into-lava occuring on JA+ servers, besides the amslapping, amsleeping, and amempowering going on in JA+ 2.3.
Yes, it's not good that Red Slushie has those commands. On that we agree.
Yes, it's good that slider removed the two worst commands, created the Alternate Dimension, and modified some of the other commands, and resisted all the whining to change things back (which I do respect). On that we agree. It's a pity that many JA+ servers won't use it, or use it but disable the Alternate Dimension.
But you can't change history. No matter what happens with Red Slushie in the future, nothing will ever change the fact that virtually every Jedi Academy player who was ever abused (and is being abused) by ampunish, amslay, amslap, amtele-into-lava, amempower, amsleep, etc. was abused (and is being abused) on a JA+ server. And anyone associated with JA+ lecturing a modder about abuse commands, given JA+'s history, is...well...I better not say it, so I won't get flamed again.