We are a small hostel and do not have 24hr reception, we can organise late check-ins but need prior notification. Hostelbookers does not give a compulsory field for guests to state an arrival time - it is optional. 99% of the time guests will not put their arrival time even though we write to them and ask after the booking and it is stated in important information.
I have asked hostelbookers why they cannot change arrival time to being a compulsory field and they say it is for "commercial reasons" wtf?
If anyone else think it would be beneficial to their hostel to have arrival time being a compulsory field please write to Hostelbookers requesting it, if enough of us request it they should put it back. It would be something really simple for them to do and would make things much easier, at least for a hostel like ours.