Not really, you just have to be careful with your scripts. Video conversion sites and WordPress are especially well known for causing high load, but just about any script can cause if it written poorly.
I agree. That chart and description should be linked from our donate page. A lot more people would probably donate if they could see what their money is actually paying for.
Whoa, thanks for the detailed info! You should totally link to this from the Donate and homepages so that donors can see this. I will be donating regularly!