Commie-Cast has intentionally slowed down my internet connection!

[Spider Jerusalem]

7. Basically thats an allowance of data transferred per month

if you're on satellite, that cap is what you're getting for your monthly payment; if you exceed it, then you're either cut off or metered and paying extra per gigabyte. For wired connections, the cap is a data transfer allowance; if you exceed it you'll see your connection throttled (slowed from say 20Mbps to 600Kbps) or shut off completely (some ISPs would send warning letters the first time you exceeded and then you'd lose your account the next time).

On edit: if you're on a 5GB per month allowance and you only use text-based fora and light web browsing and don't download or stream video and audio, you may get by. If you're doing anything more than just posting to fora and reading email you almost certainly won't be.