To answer your question it could be a number of different things: 1) Anon can't afford it anymore 2) Reimu is a gold badge. True gold badges don't mock other yukkuri so he might think this Reimu is trash and so he gets rid of it. 3) For the hell of it 4) Karma
Reimu being a gold badge is just my guess for that type or scenario. Bronze and Silver badges are less likely to be thrown out due to mocking a stray like that...in my little yukkuri world anyway