I appreciate you bringing this up, because I think this plays out all the time. I live in a small isolated town, and there wasn't a lot of turnover in houses even before the pandemic. I wrote a short script that scrapes all the listings, and alerts me to any new local listing. It was a fun little project to learn about generating text messages, and to see how effective a cron job on a sleeping MacBook can be. We ended up getting a house through a friend who sold their home without listing it, but those alerts were really helpful, and almost got us one house a little earlier.
The bigger story here is what this means for the divide between tech-literate people and the rest of the population. I don't think the parent commenter was wrong to write their script, and I don't think I was wrong to write mine, and if you wrote something similar I think it was a reasonable move as well. But we have to recognize the advantage this gives us, as people who are able to spot these opportunities and act on them.
I don't have any answers, but I think this story brings up a good discussion. I'm curious to hear other people's thoughts on this.