I'd ask the native americans what they think, and respect their answer.
Based solely on what I have heard from some, a respectful homage to a specific well-known leader is quite different than a caricature of an entire tribe/people into a cartoony mascot for a sports team. It also makes a difference if you are monetizing their images for your personal gain.
But again, I'm the wrong one to ask. If you really want to know whether Hiawatha is an acceptable name for this specific project, I'd contact the current tribal leaders and ask.
If people I know saw me working with that server, they'd likely laugh, point, say "look what jerry is working on", then hearing that others would gather around and laugh at me while I try to explain that the guy is european.
If you asked them, their opinions would not be uniform. Some would be for, some would be against, and some wouldn’t care.
Just like what would happen if you asked Anglo-Americans about their opinion on any controversial issue. And for what it’s worth, Joe Biden’s personal opinion would only get you so far.
If there's no enthusiastic yes, then it's a no then. Going ahead with something that might be offensive because there might be multiple opinions is not the best idea.
Based solely on what I have heard from some, a respectful homage to a specific well-known leader is quite different than a caricature of an entire tribe/people into a cartoony mascot for a sports team. It also makes a difference if you are monetizing their images for your personal gain.
But again, I'm the wrong one to ask. If you really want to know whether Hiawatha is an acceptable name for this specific project, I'd contact the current tribal leaders and ask.