>>1645061>is tipping the guy on the street playing guitar a 'donation'?It depends on why you're tipping him.
If you think his guitar playing improves the community and want to encourage him to continue doing it? You're supporting a cause, so it's a donation.
If you feel pity and want to help people like him get back on their feet and off the street? You're supporting a cause, so it's a donation.
If you just enjoyed his music and feel he should be compensated for his efforts? That's just a basic money for goods/service transaction, you're not supporting a cause, so it's just a tip.
Whether giving money to Beatani counts as a tip or a donation depends on whether you believe that doing so has some benefit beyond just thanking her for streaming.