After eight or so months of travel, I have some opinions regarding what makes a good hostel. These opinions range from obvious to minute, but I hope, maybe, this reaches someone in a position to make my or a future guest's stay a little more comfortable.
BOOKING
Money - It can be a pain for me to figure out what the most efficient and effective way for me to book a room is. I've had places that offered the same price online as in-person, I've had places (like where I'm staying) that offer discounts when I book online, and I've had places that offer a discount if I pay in cash (most of the Philippines). As such, I've resorted to only booking two days at any new place online and then inevitably extending using whatever method makes most sense for me. As it stands, if I were to open a hostel, I would make sure to accept online bookings, then empower my employees to negotiate cash/in-person prices, especially for extended stays.
Listings - I'm looking for three photos when I book online: what the bed looks like (see BED section), what the bathroom looks like (see BATHROOM section), and a view from the street so I can find the place. I have declined to book places with fifty photos of every single bed offered because I couldn't figure out if the bathrooms were clean. I've specifically booked places with a handful of photos because they were clear and concise. I really don't care to see big group photos of people playing beer pong - I understand that's code for "this is a party hostel", but please tell me you have something else to offer (e.g. a decent bed).