No, it does not mean a person who joined the fandom all late or only enjoys certain songs of a band/artist. A fake fan is someone who:

- Is only in the fandom for the ships and hates or attacks other fans who have opposing ships and usually start shipwars
- Threatens, harrasses, or bothers the creators and/or actors of their fandom
- Berates fanartists and fanfic writers for tiny mistakes in their artwork or writings
- Calls out other fans for being fake in an immature or inappropriate way
- Harrasses cosplayers, either in a sexual, abusive, or "friendly" way without the consent of cosplayer
- Often says that they are dating or married to their favorite person in the fandom and will hurt or harrass people who like the same person or the person's significant other
- Harrasses others who do not like their fandom instead of minding their own goddamn business and let others like what they like

(n.) a person who commits to plans then...
a. doesn’t show up for them (-500)
b.bails on them for different people (-1000)
c. doesn’t reply in gc when making plans (-200)
d. doesn’t respond in cows within 5 minutes of opening(-100)
e. declines turtle kiss (-1000)
f. more than an hour late to expected time (-500)
g. falsely accusing someone of being a fake fan (-300)
h. calling anyone outside friend group a fake fan (-800)

(adj.) when someone has the qualities of a fake fan

A fake fan is something that doesn't exist.
People who say someone who only likes a few songs or things made by a person is not a Real Fan is wrong
People are just fans in different ways

Someone who thinks and pretends they are someone or somethings #1 fan, but really, they know nothing about it/them except basic knowledge.

Some one who follows a big name sporting team only because that team does so well they have no connection or loyalty to that team nor do they reside or come from that teams local area

someone who reckons they know everything like a weaboo but they don't know jack shii

Someone who likes a band/artist/actor who becomes totally aggressive whenever anyone else says that they like them. They are considered fake fans because they try as had as they can to put down anyone else who likes the same thing as them. They can be identified pretty easily, as when you mention liking something, they will immediately test you and label you as a fake fan if you get one fact about them wrong.

A fake fan is someone who has recently discovered a new film, series, artist, or book and despite only recently learning about it, still claims that they have superior knowledge and refer to it so frequently that it eventually becomes outright disrespectful to the original, larger fan base. Some examples of films which have been plagued by fake fans are suicide squad, deadpool and the recent 'It' film.

A fake fan is a person who heard about an artist or band 10 minutes ago, is already “in love with them”, starts posting stuff only about them. Forgets about that artist in like two days. Uses the artist to be “edgy” or different. They get really defensive or aggressive when you expose them. Usually only listen two the most popular songs and don’t listen to the whole album including old music just was popular.