This is going to leave a lot of comic strips homeless unless the cartoonists can pick up the hosting bill themselves. Web comics tend to follow a pattern of growth, starting out as a hobby or a side project for an aspiring cartoonist. Pretty soon the strip gets noticed and if it's of moderate quality and occasionally funny it can easily generate a decent readership. Most of these cartoons plateau anywhere between 1500-5000 unique visitors a day. Sometimes, these strips really connect with their audience and like things tend to do on the net, spread virally into very large readerships.
Some cartoonists are able to leverage that large readership into cash.
Either extreme of this spectrum is favorable. The hobbyist can put his cartoon up on the web risk free and starting a new comic can be exciting and energizing. On the other end of the spectrum, realizing a dream and making a living from your work can be thrilling, challenging and fulfilling. The problem is getting stuck in the middle. There's this horrible point on your way up where your readership gets big enough to start costing you money to maintain, but it's not large enough to start generating any real revenue.