Notice there is some lag in signing in. Enter ReactionCore.Collections.Accounts.find().count() in console.
Solution
I didn't investigate, but my guess is that the reset script is using the same value for some field for all accounts, and that value is used in the accounts publication selector.
Problem
When I go to https://swag.getreaction.io/ and log in with the default admin credentials, the browser subscribes to all 4300+ account records.
Reproduce
ReactionCore.Collections.Accounts.find().count()
in console.Solution
I didn't investigate, but my guess is that the reset script is using the same value for some field for all accounts, and that value is used in the accounts publication selector.