Hi - I was presented with the option to turn on the STRICT (with grace period) option for my listing. I would be comfortable doing it (because I think it is right for the consumer) and taking the financial risk but I am VERY concerned about protecting my physical location and entry instructions from folks who are NOT confirmed guests. This is one of the main reasons I choose strict...I figure unscrupulous actors will not risk a financial penalty and instead go after "lower hanging fruit". I use lock boxes and electronic locks for the ease of check in for my guests.
My recommendation: Allow this feature BUT change the viewability of the EXACT ADDRESS, ACCESS INSTRUCTIONS or WIFI INFO to the guest until after the 48 hours window has elapsed and they are truly a "confirmed guest". This allows the flexibility to guests (which I support) and still protects hosts from bad actors.