Maybe because I have very little memory, but some things help the programmer who created the code to understand it (when I read my code 2 weeks after I wrote it, I need help
).
I can understand better when I read m[VarName] in my code that this is a module variable, not a local one (you can have a long routine and I should search where it was defined; well, F7 helps, in these cases, "fortunately").
If I define a variable as clsXXXX I know this is a my class.
Once upon a time...
someone who used to add a prefix to variable names to highlight their type.
Good times!