Is it a pun, hinting that Slack is for slackers?

"... and made by makers!"

If they were bought by a bread company, they would have been bade by bakers.

Faked by fakers or created by creators.. hahaha

Tautology

Is it even a tautology if it's the same word being reused?

The Tau of Tautology.

It's Taus all the way down!

I thought it was Tautols all the way down.

By designers, rather.