The thing about it was nobody liked it because attaboys were random. They had nothing to do with doing a good job or anything, they showed up randomly.
Most of the time "attaboys" showed up for doing the absolute most basic thing that is part of the job. You do it every day... but randomly an "attaboy" shows up, because by the roll of the dice you helped a nice person, that's it.
In the meantime if you went the extra mile for someone, never would any sort of attaboy would show up. In fact you might even get complaints from those folks.
For the support team watching some manager trot out an "attaboy" for no apparent reason as if it was a merit type thing was kinda demoralizing.