I totally agree with shutting down api.typo3.org.
In fact, it takes (some) manpower, even if that’s actually really limited but still and I think as well that listing methods in a website does not make sense for quite some years already anymore.
We always missed a way to add comments which could have made me think about it another way. In fact, just listing methods and parameters together with some scarce comment is of no use nowadays with PhpStorm and other similar IDE but having sample code together with important methods could be of some use. But that’s past now, it wouldn’t make sense to introduce that in current situation.
So +1 for shutting down this service.