Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
This was supposed to have been fixed months ago according to the Patch notes.
No, SDS will not do anything about it. Once you purchased the game they achieved their goal, anything after that is "too bad, so sad" as far as they are concerned.
Never had issues with crossplay.