They would have to log in as you to see your feeder, so no. Alternatives exist though: feed a local installation of VirtualRadarServer and share it on the Internet, feed ADSB Exchange and share your ADSBExchange Anywhere link with others.
I agree with the above suggestion for ADSBexchange Anywhere. I used to proxy from my website over to my PiAware Skyview. That avoided an open port connection from PiAware to the internet, but I still had all sorts of traffic constantly sucking the data…far more than would be reasonable if a person was actually watching the screen. So when ADSBx came out with that option I started using it. Now my website just links to ADSBxAnywhere in place of the proxy to the PiAware box.
Maybe simplest way is to feed adsbexchange.com as well, they enable a link to your specific data which can be shared.
To maintain a level of security I actually use a reverse proxy on apache web server, this allows a secure connection to my own web server which can then connect with any local servers on my own network and remain secure, protected by either or both of password and https(ssl).
Won’t explain how this is set up as it might not be suitable for you and is complicated.
Does look complicated to be honest! - well for someone like me.
Im guessing running scripts etc would be a no no as im running a flight feeder ( right next to the airport ) and not a Pi aware - the idea was to help the local airport community group with things from a tracking point of view.
Might have to try this once ive built my own pi aware for home.
Must admit not too familiar with Discord, thought it was mainly for group discussions like this forum but appreciate it must be more as quite popular.
Re your mention of building a PiAware, you can always start quite cheaply using a Pi Zero W, fine for just aircraft spotting, if you move on to graphs, charts and data bases then just switch sd card to Pi 3 or Pi 4
Then as mentioned you can feed adsbexchange.com (and others if you want) and they do enable sharing of your specific data via a link.
There are scripts available from contributors to this forum that make the addition of adsbexchange.com very easy.
I personally feed flightaware, flightradar24 and adsbexchange from my Pi Zero, it chugs along quite happily but I don’t run additional charts and graphs etc.