I founded mi.yodeya.
I'm also a public transit technologist.
Major Jewish communal credentials:
Mashgiach Emeritus, MIT Hillel Kosher Kitchens;
Gabbai Emeritus, MIT Orthodox Minyan.

Keep these XKCD messages handy at all times:

• For communication: 169, 1984
• For professionalism: 277
• For self-preservation: 386
• For civility: 438
• For teaching: 1053

Contact me off-line at lo_yodeya@ (my personal domain, listed under "Website" in this profile).