Platforms like TikTok and Spotify have experimented with events on their platforms. But rather than concentrating on concerts and large gatherings, event startup Posh is focusing on intimate gatherings of up to a few hundred people where you might know a friend, a friend of a friend, and a person you met at some party. The company said today that it has raised $22 million in Series A funding led by Goodwater Capital, with participation from FirstMark Capital, Companyon Ventures and Epic Ventures...