DSL users, which is why the cable commercials (around here) always take pains to say "slow DSL" (both words, always) in their commercials. It's not because DSL is slower (it really isn't, in the wild), but because it's a true competitive threat.

Aside from the slight speed differential, cable companies are a (willingly) captured industry, so you will see industry-driven content restrictions like these from them that you don't see on DSL.