This list is very in-depth. I appreciate your dedication to improving the Mineverse server quality. Support.
The reason for skyblock crashing has been removed and the server does not crash anymore, which is a good step moving forward
You should also be allowed to use /v, /lottery buy, /lottery, /lottery help, /bal and /pay as well. Honestly, I would say to not let anyone set a warp on your island, unless they are trusted or cooped. Full support on the suggestions, though.
Yes 100% Yes please No-brainer absolutely I think this could possibly be a reward for completing a hard achievement, making it a one time item to get so that it is rare. (Slightly related to @PerfectAly's suggestion on achievements here) And /tpdeny please, I wanna be petty. 100% This is an absolute necessity. Support support support Sweet, this would be extremely convenient.