IMO it's morally wrong. It looks like I'm the odd man out on this one but it's still my opinion. I'm not bashing you, I just don't agree with it and wouldn't do it myself.
What part do you think is morally wrong?
a) telling others about byteball
b) helping them claim it by taking on some of the work (installing the wallet, talking to the transition bot)
c) charging a fee
I suspect that you're fine with the first two and just don't like to see someone charging for a service they are providing. I don't see how charging for a service is immoral either, so maybe it's actually the second one you have the problem with. I really don't know though.
Curiously enough I offered the same service to the users of my dice site yesterday, but didn't take a fee. Is that still immoral?