| Name | Location | Played | Authored | Joined |
|---|---|---|---|---|
| BlakeH | Las Vegas, Nevada | 0 | 0 | September 5, 2016 |
| BlakeSM | 34 | 0 | July 28, 2015 | |
| blandestk | Ohio | 11 | 0 | November 28, 2015 |
| BlashkaW | NYC | 22 | 0 | September 11, 2015 |
| BlishS | Newfield, NY (call it Ithaca if you like, since no one's ever heard of Newfield) | 4 | 0 | August 4, 2015 |
| BlomE | 164 | 0 | July 3, 2015 | |
| Bloo | 130 | 2 | January 22, 2016 | |
| Blue | 6 | 0 | January 21, 2016 | |
| BlumenthalS | New York | 9 | 0 | March 9, 2016 |
| bmrafferty | New York | 148 | 0 | April 5, 2016 |
| BobFountain | Chicago | 1 | 0 | June 1, 2017 |
| BobFountain16 | Chicago | 2 | 0 | June 2, 2017 |
| Bobgnoosh | Ann Arbor | 0 | 0 | December 28, 2015 |
| Bocamama | Boca Raton, FL | 0 | 0 | February 7, 2016 |
| BogeC | Texas | 0 | 0 | December 24, 2015 |
| boromir | Florida | 0 | 0 | March 26, 2016 |
| Bosch | 3 | 0 | April 17, 2016 | |
| BoulierJ | Virginia | 160 | 1 | July 15, 2015 |
| boyasunder | Portland | 0 | 0 | July 7, 2015 |
| BoyerA | Longmeadow MA | 869 | 48 | July 7, 2015 |
| BoyleJ | San Diego | 47 | 0 | July 6, 2015 |
| BoylesT | Ottawa, IL | 8 | 0 | September 5, 2016 |
| BradburnA | 406 | 0 | November 2, 2015 | |
| BradGlazer | 0 | 0 | June 15, 2017 | |
| BradleyP | San Francisco | 0 | 0 | June 29, 2017 |
| BradsDad | 1 | 0 | May 30, 2016 | |
| BraggR | Los Altos, CA | 5 | 0 | August 28, 2015 |
| brando3429 | New York | 170 | 0 | September 15, 2015 |
| Brandon | Texas | 0 | 0 | June 12, 2017 |
| Bravery | Philly | 10 | 0 | September 29, 2015 |
| BregantJessie | Chicago | 34 | 0 | September 30, 2016 |
| brianghoward | Philadelphia | 56 | 0 | August 6, 2015 |
| BrianJ | 1 | 0 | March 17, 2016 | |
| Brickyard | 1 | 0 | June 22, 2016 | |
| Brigid | 2 | 0 | June 8, 2016 | |
| BringMoreLegos | NYC | 317 | 41 | November 16, 2015 |
| BrittainB | Washington, DC | 6 | 0 | July 9, 2015 |
| BrobstJ | Bellingham, WA | 69 | 0 | December 1, 2015 |
| BronteB | Los Angeles | 10 | 0 | August 9, 2017 |
| BrooksA | Norman, OK | 9 | 0 | July 20, 2015 |
| broot | 0 | 0 | January 14, 2016 | |
| BrotherBeaker | Rapid City, South Dakota | 4 | 0 | January 21, 2016 |
| BrotzJ | 13 | 0 | August 6, 2015 | |
| BrowndorfM | 1 | 0 | September 6, 2016 | |
| BrownellA | Boston | 21 | 0 | July 14, 2015 |
| BrownSKaiser | Boston | 1 | 0 | December 23, 2015 |
| BruceM | San Francisco | 239 | 50 | July 24, 2015 |
| BrucksJ | Carlsbad, CA | 7 | 0 | August 9, 2015 |
| bryan | 0 | 0 | December 5, 2016 | |
| Bryant | MA | 0 | 0 | January 19, 2016 |