It seems that the Lemmy baseball community is still in its setting up phase. Let's get some team-specific communities started! Post the community link in the comments and I'll update the post with the link.
(This was 100% stolen from the hockey community so thanks for the idea)
List of Team-Specific Communities:
Arizona Diamondbacks
Atlanta Braves
Baltimore Orioles
Boston Red Sox
Chicago White Sox
Chicago Cubs
Cincinnati Reds
Cleveland Indians
Colorado Rockies
Detroit Tigers
Houston Astros
Kansas City Royals
Los Angeles Angels
Los Angeles Dodgers
Miami Marlins
Milwaukee Brewers
Minnesota Twins
New York Yankees
New York Mets
Oakland Athletics
Philadelphia Phillies
Pittsburgh Pirates
San Diego Padres
San Francisco Giants
Seattle Mariners
St. Louis Cardinals
Tampa Bay Rays
Texas Rangers
Toronto Blue Jays
Washington Nationals