[srrr]

I asked them and for up to 40TB/month it's okay. This is 80000 views of 10 minutes full hd video. The chance that someone gets this popular is quite small.

If you are really really popular investing in a cdn is likely the only solution and for this you need some money, be it from advertising, donations or memberships. But this is the same on Youtube too, only that Youtube does the advertising for you and takes a cut.