How should I react to getting a fan?

thats up to आप really..
now that we have a दीवार i think its okay to say "thanks for being a fan" but i PERSONALLY feel thats a bit forced and meaningless. i see people saying "thx 4 the add" and that takes less than 2 सेकंड्स to type and i dont feel it really says anything. its different for people आप have interacted with- maybe they left a nice टिप्पणी दे on your submission या sent आप a prop!? then i think its nice to say something on their wall.
NEVER give प्रॉप्स for being a fan..grrrrr it makes प्रॉप्स meaningless.

as for fanning them back- some people automatically प्रशंसक आप back, some dont, some just प्रशंसक in hopes of आप adding them back because they feel a high fancount means something. let me tell आप it doesnt!
I am INCREDIBLY AWESOME....SUPER MEGA AWESOME and yet i dont have a lot of प्रशंसकों (or पदक for that matter...but still *points at self* AWESOME)

so it is your choice really. personally i will add people who i have interacted with या who like a lot of the same stuff i do.
if they type lyk dis 4 sho i wont add them- no matter how nice they seem. if i see they are a member of only twilight, bieber, बिना सोचे समझे spot and other stuff i dont care for, i will not add them.

आप seem sane and are on the etiquette spot AND type well (sheesh आप added apostrophes and capitals!!!!! go you!!!) so i would प्रशंसक आप back!

आप should also consider that if आप like to filter your दीवार या chat (is the chat still even there? its always turned off) या like looking at scores on क्विज़ the प्रशंसकों आप see are the people "youre a प्रशंसक of" so आप might want to be choosy :P