What are the pros/cons/necessity/redundancy for utilizing a VPN on top of TOR if hosting a hidden service?
I'm aware of the obvious concerns regarding logging if using a commercial VPN service, but if you utilized a service that doesn't log IPs (or other data) would it be beneficial or is it redundant with regards to anonymity?
a VPN does nothing conducive to anonymity (it is neither beneficial nor redundant regarding to anonymity): https://www.torproject.org/docs/faq#IsTorLikeAVPN
Easily explained for casual users: It just makes it seem you are entering "the network" from a different place/country... and depending on your setup (VPN -> Tor vs. Tor -> VPN) this is in the best case useless or in the worst case can actually harm your anonymity!
a VPN somehow just replaces your ISP regarding trust... if you distrust your ISP, why should you trust your VPN provider? (E.g. logging)
By using bridges instead, you don't need to trust anyone (except the Tor code, which you obviously do).
Note: All of this is also true, no matter if you are hosting a hidden service, providing a relay, just surfing or entering any other network.