when ok tellurian non-static c?

apparently there's lot accumulation opinions out there, trimming from, "never! always encapsulate (even it's small macro!)" "it's large understanding - it's some-more accessible not."

so.

specific, petrify reasons (preferably an example)

• why tellurian variables dangerous


• when tellurian variables should used place alternatives


• what alternatives exist those tempted tellurian variables inappropriately

while subjective, i collect answer (that me best represents love/hate charge each developer should have globals) village opinion theirs only below.

i trust it's vicious newbies have arrange reference, nonetheless greatfully don't difficulty adult another answer exists that's roughly identical yours - supplement critique correct someone else's answer.

-adam