Can we please have a slash command to clear errors for using this command in a macro?
Something like "/swatter clear", but for BugSack.

You can use /run BugSack:Reset()

But why? Slash commands are for something you do frequently. If you're frequently clearing errors, it sounds that you've picked up a bad habit?

I do this several times per minute during whole evening when I'm debugging issues in some addon (like Spillmaker/Bagnon_Currencies#4) - just to see only current bugs, without error messages of previous variants.