I love this idea. I often find getting a big group together for a BBQ or something is great for mixing social groups, cross-pollinating friends, and seeing people I don't often see - the downside is I don't tend to get much 1 on 1 time to really talk with friends, and often people can't make a specific time (especially as we get older). I also have a fair amount of friends who are introverted or have social anxiety and don't feel comfortable in larger groups, and this feels like it would benefit that too.