I don't know if anybody has thought of this before but in the UK version of wizard101 you are actually able to BUY gametime with your crowns you have. Can you imagine people being able to gift you gametime or even you gift them gametime, Even if just a weeks worth for 1000 crowns it could really help them out anyways. I don't see this being a big deal because either way you have to buy crowns to be able to make the purchase so KI wouldn't be losing out on any funds or anything but actually INCREASING spending of crowns which causes demand for more purchases to be made. I'm sure it wouldn't be hard to implement seeing its in the UK version of wizard101 so you can just use the code from that and copy it into the US version.
I'm sure posting a link to another wizard101 site doesn't matter since it's the same game anyways so if you think i'm lying here's a link to the UK version of the game.
Scot