Sonic fans are people who "love" the Sonic the Hedgehog franchise and most things about them, here are some ways to describe them: they are so specific with how Sonic looks and will throw a MASSIVE temper tantrums if he looks ANY different, there is also those Sonic fans on Twitter who are fans of the IDW that are either LGBTQ, have some mental illness, or both, and they are ALWAYS on about specific ships rather they are straight and LGBTQ, and they DEFEND them, they take any caring action by another character as LGBTQ, those fans are also pretty weird, then there's those Sonic fans who hate the 2000s games because they think it's "cool", they are also nasty and creepy simps who simp for a character that's not Rouge, Sally, or Vanilla (and possibly others). Many Sonic fans love to praise a certain game or character to the edge or the universe and back in a very pathetic manner, making copypasta's for it too. Me personally, anyone who thinks like this is not a good Sonic fan, they are probably massive virgins, and virgins are major losers.

A 13 year old, in their mother's basement writing sonic fan fiction.

A sonic fan frick is a frickin' frick who ruined the sonic franchisee for everyone. These frick fricks ruined the sonic franchisee by wanting sonic adventure three. The term was originates from sammyclassicsonicfan.

one that thinks they know everything about sonic the hedgehog and will fight people to make their opinion fact.

SFS (Sonic Fan Syndrome) is when a person or community of people gaslight themselves that a bad product or franchise is actually good.

Twitter sonic fan: Sonic fans on twitter.
This is a description of the average 'Twitter sonic fan'.
Bitch about every minor detail.

Mental illness(autism, schizophrenia etc..)
Like to think every bad (06,Black night, secret rings) are missendertood masterpieces.
Aren't fun to be around. They're coping have sindroms of toxic negativity.

And most imporantly: They're huge meat riders.