Yes flag client side issues in the anvil forum is best. A bug in skulpt or missing feature is a bug or a missing feature in anvil.
Also it will give other anvil users a reference when they come across the issue in the future.
We try to stay in line with skulpt open source project and contribute heavily towards it (you might spy 
♂ a recent pull request from me implementing an updated datetime module that will be in the pipeline to fix the issues you previously pointed out).
I’ve split this topic as we’ve taken a slight tangent to the original thread.