If doing hobby/education projects and not publishing what you create, copyright isn't really relevant.
As for violating terms of service (which is very likely), that's not "illegal", it just opens you up to being sued. Which is very unlikely, if no one is making money out of it, or hurting the service itself.
1) Copyright 2) Terms of service.
If doing hobby/education projects and not publishing what you create, copyright isn't really relevant.
As for violating terms of service (which is very likely), that's not "illegal", it just opens you up to being sued. Which is very unlikely, if no one is making money out of it, or hurting the service itself.