A rough idea of our bandwidth limits.
Technically we have unlimited bandwidth, however we have some servers that allow "unlimited" bandwidth but most don't and we have to pay extra when we hit a certain mbit/s level daily. We don't get charged per megabyte but instead on the 95th percentile of the months amount of throughput bandwidth.
If you buy the lowest priced plan, which most people do, we expect a bit of consideration of all the other users on our servers. We get some clients who get a 10-ip pack and use more bandwidth than the entire rest of the server they're on, for about 15 minutes because they want it all done NOW. Some start a big run using maximum threads and then wander off to bed and it still gets finished an hour later, but causes a lot of strain on the servers bandwidth, when they could just turn down the threads a bit and let it run for a couple more hours while they're sleeping anyways.
So all we ask on the smaller plans is to turn down the threads a bit and give everyone else a fair go so we can maintain the level of service everyone comes to us for.