Board Thread:Skyrim/@comment-121.74.99.81-20140330074736/@comment-89.144.207.206-20140627211103

@ the wiki contributors:

"Sorry not now lass, I have important things to do we'll speak another time."

---guess you haven't finished the big jobs. You get 1 each for Markath, Windhelm, Whiterun, and Solitude by Delvin, as soon as you've finished 5 small jobs (Vex' and Del's) in the city

SPOILER: once you did a job, you get 1 merchant more in the Ragged Flagon, and from time to time a new recruit. As soon as you've finished both the 'main-thieves-guild-quests' as well as the 4 big jobs, talk to Bryn, you get a nice ceremony.