The latest example of this is their decision not to tell the majority of people in TRE that they are holding their Spring semi-annual meeting on April 30th, at the home of a local resident from 3pm to 5pm. If you want to attend and are a resident of the neighborhood then contact me and I'll give you more details.
TRENO raises thousands of dollars every year through the Modernism Week tours they hold so it would be simple for them to mail every household in TRE with a Notice and agenda. Apart from that their by-laws state they must do so:
"The Advisory Council will notify the general membership of ... the Spring General Membership Meeting at least 30 days in advance of the Meeting. The Notice shall include the date, time, location and Agenda for each Meeting."