Evidence that Macros Do NOT Cause GCD Delay or Lost Casts

[AmiableApkallu]

I feel like this entire thread could be summarized as:

Q: Should I use a macro for <thing>?

A: It depends.

The clickbait-ish title does no favors on The Internet, but seriously.

If you're a one-limbed feline suffering from arthritis, then maybe a few well-constructed macros will help you perform better.

If you're a spry, four-limbed human in perfect health, then maybe you have no need for macros.