Unreact to accounts less than 24 hours old when main account joins

[izzydesigns]

Example:

Proposition:
We could parse the usernames (case insensitive) of two identical accounts that have joined in the last 24 hours that share the same username. If we find a match, un-react to the first account after their "main" account joins.

Cause:
This is caused when someone uses the web app to join the discord when not signed in, creating a "temporary" account, then they sign in and join, causing two identical accounts to be created. If we removed the reaction from these temp accounts once their main account joins, then that'd allow us to easily differentiate between people doing this maliciously to potentially avoid a ban, and those that did it on accident.