This.It just feels so forced. Like, "Se" is not how you abbreviate "Series," like ever.
Whenever I see someone post it I assume they have to be, max, thirteen years old. It's not in any way clever, it just reads as "teehee, I just said 'sex!'" Like yelling "penis!" and then running away giggling.
"SNES" is fine, unless you pronounce it as sness, which is an abomination.