Zoning change and occupancy limits

[olszowka.livejournal.com]

Recently, I received a letter in the mail from Neraj Tuli of Zone Smart Somerville (www.zonesmartsomerville.org).  The letter was urging me to oppose a provision in the proposed zoning changes which would prohibit occupancy of a house or unit by more than four unrelated adults regardless of the size of the house or unit or other mitigating factors.  Does anyone know anything about this?  I believe I am opposed to this provision, but would like to learn more.