Soften shame message

[timgl]

Changes

Please describe.
If this affects the frontend, include screenshots.

Checklist

• All querysets/queries filter by Organization, by Team, and by User
• Django backend tests
• Jest frontend tests
• Cypress end-to-end tests

[timgl]

I do think the message is funny but external people/potential candidates will read it too and will think we are a horrible place to work at

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[Twixes]

LOL
That's fair.
In this case the is-collaborator step is obsolete and can be removed.