@Tanya678 If you have a limit of 4, you can't get a Request for 6. You will usually get an Inquiry for 4 asking if its possible to make an exception and accommodate 2+ extra guests. When that happens you have a choice of saying yes or no.
As for not getting the search benefit of allowing 6 or beyond, that is the price to be paid by our choices. I know exactly what you mean however, we list a max of 6, but constantly have to fend of people wanting to bring 8+, even 12. 🤔