That's not really true. "The description is bad" is a valid premise for an issue, but could be executed better (for example by explainign what is so bad about it and suggesting a better one).

I agree, but I will say that the issues tag is meant for when the kata's test codes are entirely incorrect, not issues you have with the kata as a whole.
(I am just giving you a heads up, some moderators are not the best at communicating this.)