Kicking or banning is a bit harsh, just ignore them or block them until they stop, it's not that hard really. Yeah it can get a bit annoying, but overall it's not really a big issue, there is always gonna be begging when someone new joins and sees awesome items and such, specially when some people always link neat items they have. If someone begs for something, just ask them to stop, if they don't then block them, and it would most likely be considered mic/text spam if they keep it up, which is solved with a simple gag/gimp.
x1