We had community events here. Getting people to host their own first shabbos is not really a good idea. They ran it here like a Shabbaton and the Havdallah concert was like a Kumzitz.
Reading some of these replies reminds me of a flyer I saw, There was a Shiur on the “Halachos of the SHabbos project” with such items like Yayin Nesach and saying a Dvor torah in front of an “Unzniut Woman” as opposed to what Shabbat.com said. Rabbi Klazko also gave rules and they were like Dont discouss certain topics (Like Charedim in the Army and Toeivah) . Sing Songs they guest might know like Havah Negilla and dont get upset if the person does a Malacha or the Phone goes off.
I am no Rav, but I do know that if you a Machmir on Yaayin Nesach and you get upset if a non-religious guest touches it, they are not coming back