To the best of my understanding I think the technology
does drive up prices, but not in an anticompetitive way. I know people get really passionate about this, so I don't want to argue with people on hacker news about it, but to the best of my understanding this is what is happening:
Rental prices in the USA keep going up primarily due to a housing shortage.
Revenue optimization algorithms like realpage's do genuinely increase rents by about 2-5%, because without them fee-based property managers lower rents below market-clearing price in order to make it easier on themselves.
The increased rent that comes from using these algorithms is, in my opinion, not really anti-competitive. If you only used public information for the pricing algorithm, you'd get largely the same prices out of the system. In almost all rental markets, algorithmic pricing of any sort doesn't have high enough market share to see success by anticompetitive price-fixing, since most suppliers of housing don't use it.
Apartment rents are crazy high because there simply isnt enough housing, and we dont let people build enough dense housing near jobs. Going after Realpage, or blackrock, or landlords, or AirBnB is just trying to find a scapegoat, when the hard truth is we need to let people build more housing near where the jobs are.