Yes he can(and probably should) buy a yacht. What you're missing though is that by not being transparent they miss out on a lot more contributors. So it's not

Yes he can(and probably should) buy a yacht. What you're missing though is that by not being transparent they miss out on a lot more contributors. So it's not a super smart move. Also keep in mind that a lot of contributors might not use OpenBSD, yet they might be interested in offering some small amount if they believe it's for a good cause and they know where that money is going.