Evidence that Macros Do NOT Cause GCD Delay or Lost Casts

[Rin_Sato]

As the following is somewhat related to why macros aren't so great, please do the following for more insight.
Test a macro with the first 14 lines being '/macroerror off' followed by 1 line with '/echo test 1 <se.6>'.
Compare this to a macro with just '/echo test 2 <se.4>'.
Now mash each alternatingly and compare how many of each you get in chat (you will get no instances of test 1 unless you slow down to less than 2 presses a second or so).