- email verification is probably for spam detection (weak in terms of ability to get around, but maybe useful?)
- subscriber is already provided as part of cap request
- subscribed since can be useful for detecting length of subscriber chain, but available through the api pretty reasonably
- roomstate for when the stream went live (last live?) maaaay be useful, except a user may not have ever gone live. Really the api is more appropriate for this (IMO)
- userstate for when someone created there account is another (weak) spam detection helper.