You're doing the same thing. You're reducing the effort this person put into finding a solution to, "a couple if statements" and "he can call himself a ... if he wants to." Sorry, that's dismissive of his efforts and reeks of elitism and bullshit.

> What’s the incentive here?

To not turn away people who want to contribute, and have proven they can help, who are doing the job they're asked to do by their employers in the case of industry, by being an asshole to them.