If they were also to make me CEO of Yahoo! I'd consider it.
I'd put Mayer in control of the current services of Yahoo! that serve advertisers, and then take their most wasted talent and direct a subsidiary that was focused on serving users. IMO non-advertisement-based applications are going to be increasingly viable, and it would be interesting to build for demand based on quality, each application centered around a specific mission. Hubski would be a quiet corner of this subsidiary that was free from external demands.
TBH, I'd hate to run a publicly traded company, and the board would probably get squeamish and fire me before I could do anything really interesting.