"So do you have anything other than snide remarks to add? ;)"
If you mean, do it myself, no, I'm afraid not, pretty busy. But I see
prospective developers from time to time ask how they can contribute. This
would be something that does not require intimate knowledge of MediaWiki
internals, so I'd say give it a try.
"The person creating it would have to be *very* trusted and their bot code
vetted for security purposes."
I wonder, many developers write applications which will need to run in a
secured environment, so much so that they don't get access to the live
version themselves. They test it on a fake account. Standard practice. Yes,
an audit would be wise.