"Configure guest and new user options for this theme" also affect existing users

[Dream of Omnimaga]

So I recently used "Configure guest and new user options for this theme" on my board so that future member accounts have certain options changed by default, such as board notifications. However, after I applied the changes, it also changed notification settings for random users. For example, my account was not hit, but many other members were hit, even though I made sure that I had carefully chosen "Configure guest and new user options for this theme".

Shouldn't it just change options for future accounts and (if applicable) guests, and not existing random user accounts?

[Kindred]

Ummm... Yes and no.

I suspect that it changed any user who never changed their settings from the previous default, and thus never had a user record in the themes table

In reality, I don't think there is any good way to address this, except to set every user record when they sign up... And that would be a waste of space for most sites