It probably will be fine but its not something I'd want to own or buy. It may have been safe whilst you had it but ultimately its not safe. I'm 100% certain it didn't come from new like that so something must have happened.
It belonged to friend who had owned from new..no reported issues with replacment hanger or skewers etc.
The issue would be that replacement mech hangers aren't available, hence the bodge on your old frame. The skewer is fine until it snaps, which it could feasibly do on that setup as its putting far more stress on it than it would if it didn't have that extra bit of metal (the bolted on hanger) on the dropout.
It probably will be fine but its not something I'd want to own or buy. It may have been safe whilst you had it but ultimately its not safe. I'm 100% certain it didn't come from new like that so something must have happened.
The issue would be that replacement mech hangers aren't available, hence the bodge on your old frame. The skewer is fine until it snaps, which it could feasibly do on that setup as its putting far more stress on it than it would if it didn't have that extra bit of metal (the bolted on hanger) on the dropout.