I think the domain name for the project got hacked or taken over by a
porn site.

Sadly, yes the domain has been obtained by a NSFW site.

However, the new project maintainer has setup their own domain...

https://talismanbbs.org
^ I think the original was .net, now it's .org

Could the project maintainer revise the exe file when it puts a link
to the Talisman Guide either point it to a new web
domain or remove the icon?

I have a outstanding issue #4 on the maintainer's releases repo that has
a fix for this and for fixes to the latest install.sh for v0.54

Sorry for the delayed response, but hope this helps, some.

Take Care,
Apollo


--- Talisman v0.54-dev (Linux/x86_64)
* Origin: Lunar Mod (21:1/236)