A blockchain requires significant, persistent and consistent community effort.

If you can not have one guy taking up the mantle and doing the hosting, how can you get hundreds to do the same?

>A reason I have been interested in blockchain is that it seems like a good way to make a decentralized application that could exist beyond the life of the company or person that creates it.

Community run projects have existed for decades on the internet. They never needed a blockchain to persist. If they died, they died due to lack of interest and effort by their communities. A blockchain can not prevent that.

>maybe other solutions I'm not considering or aware of? IPFS potentially.