Just saw this question over on Google+ about whether tying Solid identities to hosters might lock end-users into big players over time. Any insights here? I ask as someone who is trying to explain the platform to others.
Since the location of your POD is stored in your ID, it is easy to relocate your POD as needed. However, the proposed WebIDs include the domain name of the identity provider. For example, if you get your WebID from Berners-Lee’s own Solid startup, Inrupt, it will be of the form <userid>@inrupt.net. So you can’t easily move your WebID. To make matters worse, it’s likely that if Solid becomes successful most users will get their WebIDs the easiest possible way — from one of the places they already have an identity like Google or Facebook. Those companies would then still have leverage over them, and also would have full knowledge of queries made about the ID. I suspect they’d also be the major provider of POD storage as well, meaning they’ll have fairly complete audit trails of your activity on the web.