No touch and go's?

In many airports out there, you'll find in the AFD in the comments
section, "No touch and go landings", and/or "no practice approaches".
A few examples off the top of my head:

http://airnav.com/airport/ksac
http://airnav.com/airport/kcpm


What exactly is meant by this? No touch and go landings period, or
just don't do multiple touch and go's, as in buzzing around the
pattern for an hour? It seems kind of weird to me that an airport
would totally not allow touch and go landings. I can understand not
allowing multiple touch and go's, as they create a lot of noise,
negatively effect arrivals and departures, and generally can be a big
nuisance. Compared to a full stop/taxi back, a touch and go is more
efficient, arguably less noisy, and less of a burden on other traffic
(how many times have you had to go around because some joker had to
taxi to the next taxiway?)

Is there something I'm missing?