There are some use cases where the distributed ledger is extremely useful to store security information in a decentralized storage. But those information need to be pulled out from the tangle by a web page that is stored on a web server that is a centralized entity.
It like my IOTA node (and others) to answer to a browser asking IOTA_NODE/txID with a HTML page that is stored in a TX (or bundle).
The page will interact with the user and extract the required data from the tangle.
Every IOTA nodes could answer alternatively creating distributed front end platform.
I've texted IXI module extension but it seems it support only POST while the web browser use the GET HTTP.