Wrong. You can always convert tabs to spaces with tools like expand. When i post code to this site i run my code though expand -t3 to convert each tab to 3 spaces.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)