Board Thread:Support Requests - Getting Technical/@comment-36942801-20181010155429/@comment-168424-20181015184417

By "the moderators", do you mean FANDOM staff?

So, if they rejected it, I think you should lean on them to help you find a a good alternative solution via Special:Contact/general. I'm pretty sure they allowed versions of this collapse code in the past and didn't go about removing it from the wikis where it exists.

You could also ask for help at the on the, since they have a bunch of JS experts there. More than likely they will know of a similar meta-template with a different implementation that works.