At least not worthwile for the purpose you have in mind. Okay, now I understand better what you mean, something like: for some purposes, there's not much to be gained by distinguishing between "bug" and "feature", one major reason being that there is no clear boundary between the two.

I first read your original comment in a much more absolute way (there is no distinction at all, and it never makes any sense anyway), which is quite easy to disagree with.