After hosting for 8 years, it appears that recently, spamming hosts, picking one, and just forgetting about all others becomes more common. When offering to host someone, I normally even say something like: "Please let us know if you want to stay with us, just in case you contacted several hosts" but to no avail.
Not sure how to deal with that. Certainly not enough for a negative feedback but quite impolite anyway. Any proposals?