All outgoing links return non-secure errors, not having individual torrent pages would make this impossible to rank and pull tons of traffic. It seems stable but at the same time, it looks amatorial.
Depends on the service provider. The links are going to the web site it was taken from. That is the same principle as Google, index and when click, go to the original web site.
I understand, but that is out of my control. That depends on the certificate of torrentdownloads.me
For example if I linked to namepros and namepros had an expired SSL, then most probably you would get the same result.