Anyone who does not want to organise these things only needs to not offer to do them. Simple as that.

The ones I've been involved with created a great deal of work, and were all akin to herding cats as some others have commented, but as far as I know have been fun for all attending.

As to the dozens of doos I've attended around the globe, the three annual events Bernie organised in Düsseldorf all ran to incredible Germanic precision and were all superb affairs. ^