That are valid proposals.
Specially No 1 is a threatening bug, because that could be used to stall a server.
Unfortunately we are currently short on developers and the main focus must be on compatibility to Joomla! 4 and PHP 8.
Therefore your will to develop a helpful plugin on your own is very welcome. Please share your sources.
I am not yet a developer for JEM and did not dig into the sources, but maybe you will get some help from others here or you find on
what you need.