I don't this is unnecessarily unethical or unwarranted.
If several members of a team have been struggling with a problem, it's interesting to see a person's first take on it.
Are you coming up with creative new solutions that haven't been brought up in the team's conversations?
Are you coming up with solutions to the problem that the rest of the team immediately crossed off, or even are obviously wrong?
Also, I wouldn't mind getting a taste for the real-world problems I'd be facing at the company. I find it far more shady when I get interviewed, sign a work contract, and find out I'll be working with several other technologies that weren't anywhere in the job description or interview.
If several members of a team have been struggling with a problem, it's interesting to see a person's first take on it.
Are you coming up with creative new solutions that haven't been brought up in the team's conversations?
Are you coming up with solutions to the problem that the rest of the team immediately crossed off, or even are obviously wrong?
Also, I wouldn't mind getting a taste for the real-world problems I'd be facing at the company. I find it far more shady when I get interviewed, sign a work contract, and find out I'll be working with several other technologies that weren't anywhere in the job description or interview.