There are currently three questions with the tag cross-plattform. This should be spelled cross-platform, but that tag doesn't currently exist. What is the best way to handle this situation? I don't think a tag synonym is the correct solution, because we only want one tag to appear when the user starts typing "cross-pl". Should the three questions be edited to correct the tag spelling, or is there a better solution?
If there are just three questions, remove the tag and create a new one with the proper spelling.
In this case I think the tag shouldn’t exist at all, because it is ambiguous: what platform, browser, PHP version, operating system or something else? Shouldn’t all solutions work on any system? I’d say let’s just remove it.