Previous the bur in forum #192217 about renaming:
symbol_commentary is supposed to be used when a commentary consists solely of symbols. Right now, it's heavily used in cases when any symbol is present. Theoretically this means symbol_commentary should always be tagged with commentary, and never with commentary_request. The hope is that naming it something like "symbol-only_commentary" would lead to fewer mistags.
I think if the number of erroneous uses has decreased to an insignificant level, then it is acceptable to approve the current BUR. In doing so, you should make sure that all ambiguities are resolved. At the moment, there are ambiguities that I indicated in the previous discussion. The main one is the use of non-English hashtags (post #4675607 ), combination english hashtags + symbol-only_commentary (post #4675947).