Well.. yess, it's an online business, we set up an online shop, whatsapp group, social-media then we sell stuff, and the nature is not at all formal, the theme is mostly friendly and familiar, and it's not only unique to me, we just copying others as well.
I even make games once in a while to keep up peoples engagement in the group, and we also buy and promote whatever product they sells, let's say you sell cakes I might buy your cake and post the picture of it while tagging you, telling every member that I buy this cake from you and it's so delicious. So it's more like, community setting, we either know our customers before they become our customers or we ending up getting to know them after.
Ah, okay. Sorta like if we were to ever have a marketplace here. MaryKB could make a fortune, selling cookies to people whose customs regulations don't forbid baked goods from the U.S.
The first gaming forum I belonged to had a buy & sell subforum, where people could buy and sell second-hand gaming stuff. The site owners took no responsibility for any deals that fell through, and people were encouraged to report on the results of the transaction, like "Poster A was prompt in sending me the books/comics I ordered, they arrived on time and were in the condition stated."