Do you tip a dealer courtesy shuttle driver?
I tip anyone for service. It may be different in different locales, but around here they work for tips...it's usually a low paying job.
Normally people that do not take tips will let you know.
I have found ATOT the cheapest forum on the internet. People have no problem spending $100 to make their PC 1fps faster on average, but good forbid a tip.
Many that do tip make a caveat that the service must be above average to get it.
The Masamune blade would repel the leaves and let them flow safely down the stream, while the Murasame blade would attract and cut them up.