Sonic: purposely types in all lowercase because it's cooler

Shadow: Uses perfect grammar and punctiation because he wants to be taken seriously.

Amy: Uses a lot of emojis! 😄😊😆

Tails: Also uses perfect grammar, but only because it's against his moral code not to.

Knuckles: Like This Probably

Silver: USES all caps to EMPHASISE random WORDS!!

Rouge: *exclusively uses voice notes and photo replies*

Blaze: Uses capitalisation but not punctuation