Beggars

The same way as in real life. Ignore and move on, if they are unwilling to work for their money, then they don't deserve any. I never accept random trades, they are always a waste of time.

I agree, beggars should earn the money, regardless of how simple the task is. For example, in my country, some people sell tissue packs for $1 each (which is a complete rip-off, but still, they are trying to earn it). That's so much better than an old man I see everyday who sits in front of a shopping mall, putting out his prosthetic leg and even has a laminated sign saying he needs money.

For example, they could mass sell fames by making multiple accounts. That is a cheap way which anyone can do. It just requires a bit of effort.