> - If I run an IPFS node, will I be hosting other people's data? What if these files are illegal? How can my "computer" (I guess a node is the terminology but whatever) be sure I won't be hosting some bad stuff?

Thats some of the reasons why i prefer the 'Dat' and torrent(be it classic or DHT) model of distribution per content, instead of IPFS which is per block.

The IPFS model make a lot of sense for cloud storage.. You might create a whole CDN based on its model where the clients dont even need to care about your backend storage layer.

But in the per-content p2p distribution model, we have the 'page-rank' effect, where popular or important stuff, curated by human reasoning of whats popular and important.

This model has worked pretty well with torrent, and public interest should drive the p2p storage model, where by using blocks, you lose some of the control and the context. And to see how this is a problem, the IPFS folks created the Filecoin to deal with the problem of the incentives, which on the 'per-content' model of Dat and Torrent, its a non-issue because of the natural page ranking indexing of content drive by public interest.

If something doesnt matter much, it will go away with time, just like our human brain works.

(Of course, if IPFS add some form of indexing of content by public interest on top of the block system, and even let you control what you serve. That problem would be solved)