Site Bookings

Should there be a limit on the number of sites a member can book at anyone time. I would like to propose a maxium of SIX BOOKINGS at any one time,I think this would encourage members to use a greater number of sites instead of bulk booking of the same site over numerous occasions, hopefully this would reduce the number of last minute cancellations and encourage members to stick to original bookings. When  a member has used a booking they could then make another to keep there bookings to the maxium allowance of six, This is just an idea as it seems most sites are already book  througthout the year by  members bulk booking