My company has had some issues since November, when some managers decided it would be a good idea to "promote" several senior scientists and engineers in the company (by giving them more work, responsibilities, liability, etc.) but no pay raises or new job titles. For example, one coworker is now the "principal data scientist" (rather than "senior data scientist") for her team, but she doesn't get a pay raise or benefits increase, not even a new title she can use on her resume/CV or LinkedIn profile to help her get a higher-paying job at a different company or competitor. Update: we get new "internal" titles (i.e. my friend puts "principal data scientist" on emails sent to other employees, but her e-mail signature, business cards, even her LinkedIn profile (the company checks) has to have the "external"/lesser title).
In retaliation, several coworkers (25+) apparently updated their LinkedIn profiles at the exact same time, updated their job titles to something more senior than their real/official titles, and used a "Notify my network of updates" feature (i.e. you can choose whether or not all your contacts/friends on LinkedIn get auto-notified if you post a new job or promotion). This has caused a lot of chaos and stress at our company, as dozens of technical individuals (of all skill levels) are worried the "brains" are going to flee, and the company is going to sink (i.e. layoff the rest of us). Someone even created a fake LinkedIn account that looks like it's an official HR account for our company, posting messages on various people's pages saying "we didn't pay you more or give you a 'real' promotion; please downgrade your title and take down this potentially mis-informing update". This just made things worse and resulted in considerable public embarrassment for the company (account has since been deleted).
I know who one of the ringleaders is (can prove it, but discovered it by doing something I shouldn't with the company network, which could get me fired if I admitted to doing it).
Is there any way I can report the ringleader (i.e. anonymously) without risking my own job? I've worked here for years, and want to continue to rise up the ranks of this company. If these clowns keep driving it into the ground with their antics, layoffs are certain to follow (and since nobody knows who's coordinating this chaos, layoffs could be random rather than targeted). I also don't want to have to find a new job when nobody is hiring and I have 10 months of severance pay banked (so long as I'm not fired with cause). I can't disclose the proof without clearly identifying myself, due to the technical nature of the proof and the limited number of people with the knowledge and credentials to acquire such data.
Edit
This feedback has really made me depressed, and re-thinking if I should stay with this company. Between the "no reference policy" and people getting drunk and bawling over the prank via Zoom, I'm starting to see this place as a sinking ship. From one of my comments:
It created a lot of drama for sure. Several colleagues caught up on Zoom to do a video conference where one employee narrated all the "funny" posts this "fake HR" account made while people drank alcohol. The most popular was "Dear minion: we give you the work of a 'senior scientist', but not the title or pay. Please change your job title to something less impressive before a competitor hires you unwittingly". Several people commented on it (external to the company), convinced this was our own HR department making these posts.