Facebook and Instagram are about reach, and Boston buyers split into very different groups. A Back Bay condo owner, a Somerville triple-decker landlord, and a Quincy homeowner scroll the same apps and want different things.
Renters make up a large share of the city, especially near the universities, and lease turnover clusters at the start of September. That gives property and cleaning offers a natural window.
Older housing also creates a steady stream of planned jobs, such as boiler replacement or repointing brick, and those respond better to follow-up ads than to a single search click. Massachusetts broker and trade licenses shape what ads may say.
The T and the Mass Pike shape how people commute, so we group neighborhoods by how people travel, not just by distance.