I would argue that the reason is because they're tired of being pestered by would-be listing agents. I have a property listed as FSBO for the last 4 weeks and so far I have received 67 calls from listing agents, all documented in a spreadsheet so I can block them via Google Voice.
Or it may be that buyer's agents actively steer their clients away from FSBO properties which one person revealed to me during a showing even though the listing states I'll pay 2.5% to the buyer. I requested and now have that in writing from this buyer in case I feel like filing a complaint. You should have seen the agent's face when I said my email was in the listing and she could ask me any questions directly if she liked. An agent mortified by the thought of direct communication between buyer and the person who knows the property best.
Actual potential buyers send emails. Agents seem to only communicate via phone, probably because they believe they can charm you.
Or it may be that buyer's agents actively steer their clients away from FSBO properties which one person revealed to me during a showing even though the listing states I'll pay 2.5% to the buyer. I requested and now have that in writing from this buyer in case I feel like filing a complaint. You should have seen the agent's face when I said my email was in the listing and she could ask me any questions directly if she liked. An agent mortified by the thought of direct communication between buyer and the person who knows the property best.
Actual potential buyers send emails. Agents seem to only communicate via phone, probably because they believe they can charm you.