1. This quick guide is more for those that still do not run a bundle node or a node at all, but want to try LNbits.
  2. If you run LNbits behind Tor you are limiting its use ONLY to Tor users. For testing and play around is OK, but keep in mind that not all LN wallets could interact with your LNbits over Tor.
  3. Yes, you could open your raspiblitz Lnbits to clearnet (see my other guide here). You have many scenarios how to use it.