This is exactly my point. In the recent past, people would stick notices up on the marble walls of the lobby. No matter how often these were ripped down, as soon as the same day, posters would appear and re-appear.
By installing bulletin boards, building management is saying, “we recognize the value/service of a putting up notices in high traffic areas; we won’t fight you (the masses, the market), we just don’t want you to deface our nice marble walls… anymore”.
I’ve posted and searched the “boards at Shih Ta” for as long as I’ve been here, and they are distinguished as being boards which do not require office “approval.” If you want to over-analyze it, this is a small example of capitalism at work – supply/demand, customers and suppliers interacting to changing needs to drive the market. I’ve heard many complaints about “Taiwanese authorities” (gov’t, school, bosses, roommates even) being conservative, old-line thinking control freaks. It’s nice to see policy following the people for a change, huh?