I would vouch for accommodation questions to be on-topic, as long as they are clearly focused for academic hosting (that is, "Channels for accommodation for 6 months at VU-Amsterdam" is on-topic, "Looking for accommodation in Centralia, Pennsylvania" is not). Also, direct "Does anybody here have a room available from/to? write me at" are completely off-topic.
The focus is to give tools, not solutions to the problem. The tools will stay valid and useful to other readers in the future. The "I have a room, write me" will not.
The reason is that relocation and quick finding of accommodation channels for short term rentals is a complete and necessary part of the academic lifestyle. Very, very often, the universities provide little or no facilities or preferred contacts for such task. Networking, unknown but dedicated services, local traditions, safest channels (e.g. commercial vs. private) on this regard is a necessity we have to endure as much as we have to endure applying for grants.