It's pretty common for community members to leave their addresses in their signature for the purpose of receiving tips for helping people out.  If you look at any code developer, whether it be for pools, wallets, etc., almost all of them have their address in their signature for tips, or they will list it in a help post for the purposes of tips.  If you look at almost any pool, you will see the original developer's wallet in the footer of the site.  Most tutorials have a "tips accepted line somewhere".  Tips are a common practice in the community.

24Kilo has helped numerous people, including myself.  The fact that he has his address in his signature is in no way comparable to someone beg for donations because they are too lazy to work for their coin.  In the last 2 months I have seen 24Kilo put his blood, sweat and tears into not only working an organic veggie farm, but a building up a farm for coin as well.

-Fuse