I have noticed it while running ~/bin/some_command. The ~ doesn't echo until I also type the /. It doesn't cause any misbehavior because there is no binding for ~/ but can be slightly surprising.

I find it odd that you would have commands in ~/bin but not have it be the highest priority in your PATH. I use ~/.local/bin, but would never type it because i wouldn't have bins that overlap shell commands and no other path would have priority.