I find the actual need for the various symbols confusing.
I understand they're a guide to proper pronunciation as much as anything else, but having grown up on the English language which generally manages to get by with 26 letters (albeit pronounced differently in different circumstances) my head struggles to deal with all the other little bits and bobs, and ŋ vs. ṃ is certainly a case where the way I would read it naturally in my head actually conflicts with how it probably ought to sound.
The symbols/letters we're discussing here is the one use in the word Sangha, isn't it?
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"The uprooting of identity is seen by the noble ones as pleasurable; but this contradicts what the whole world sees." (Snp 3.12)
"To argue with a person who has renounced the use of reason is like administering medicine to the dead" - Thomas Paine