Yes yes there is fake therians, many out there in fact. Most of them just pretend, some of them are wolfaboos.

Wolfaboo: a person who LOVES wolves, or anything wolf related. 

(Note: youre not a wolfaboo if you like wolves, its just very common for a person to be a wolfaboo if their obsessed with wolves)

Fake therians, how to spot them? Fake therians are well, the name says it all a fake therian, a person who thinks therianthropy is cool and immediatly assume thier a animal, not all fake therians do this, and just becuase youre questioning after you learn the meaning of therianthropy does't nessacarily mean youre a fake therian.