Does This Show Intent? (Yes)

A reddit thread from 2014 shows a redditor called stonetear asking:

Hello all- I may be facing a very interesting situation where I need to strip out a VIP's (VERY VIP) email address from a bunch of archived email that I have both in a live Exchange mailbox, as well as a PST file. Basically, they don't want the VIP's email address exposed to anyone, and want to be able to either strip out or replace the email address in the to/from fields in all of the emails we want to send out.

I am not sure if something like this is possible with PowerShell, or exporting all of the emails to MSG and doing find/replaces with a batch processing program of some sort.

Does anyone have experience with something like this, and/or suggestions on how this might be accomplished?

Stonetear is likely Paul Combetta's username. He's used the same name for email, imgur, etsy, and other accounts.

The FBI couldn't prove intent but the reddit army seems to have found it.