Separate rent and buy in real estate

quite right, yes it would
but
real estate is not our main focus, so thus far nobody had taken on the extra work that would entail . . .

The site owner put on a real estate board as a courtesy, because so many people are obviously interested. But Brooklynian isn't Craigslist, and generally doesn't put effort into duplicating online needs that are already well set-up and served.