Write a question about the following article.

i run a secret santa / swapping communtiy called santaswap . it 's great for those who like sending and receving presents . check out the user info , do n't be discouraged by the rules . i ' ve been running it for 2 - 3 years now and we have a good track record , and the rules are there for a reason.the next big swap ( $ 30 spending limit inc . shipping ) is coming up on 10/1 for halloween .

Question:
What may be the reason for their post ?

[-] They want to bring in more revenue ..
[-] They need to get more people to join them ..
[-] They want to get incentive by recruiting more people ..
[-] None of the above choices ..