There are a lot of methods there that are weirdly developed like for example trim Curve it requires you to provide a float parameter or domain or something to show where to trim it instead of picking an object.
This is what lead me to creating this thread:
Another example is adding fillet. In RhinoCommon method you have a boolean that allows you to choose if you wanna trim the curves or extend them to make the fillet. And join them afterwards. In rhinoscriptsyntax you don’t have a choice you simply create an arc there no extend no trim no nothing. This is useless done like this. (to say the least)