Calling out others for good work is a very positive thing and when done in front of a group (team meetings, bulk emails etc.) can return massive dividends to the overall mood, tone and attitude of the entire organisation, and that's not to mention the personal benefit to the individual. All good leaders will give praise where it's due, keep that praise for genuine reasons (not fake-ass bullshit), and will never take the credit for work the team or a team member has done. That's leadership suicide.

Anyway, good work for the shoutouts you do, keep them coming.