I've observed that there are a small number of questions tagged as "rstudio." Is this strictly necessary? It seems to me that it would prevent splintering of R-related questions across multiple tags if one were a synonym for the other.
Thanks for bringing our attention to that! I have removed this tag from the three threads. Obviously, we don't need such a tag on Cross Validated as it targets a particular UI specific to R (even if this is probably the most useful and least intrusive :-).
No, we do not need a distinct rstudio tag because rstudio is simply a convenient interface to R, not a separate language with its own peculiarities. Making rstudio a synonym of r appears to solve any residual need to consolidate R-related tags.