UKH

Why is there no route descriptions on most routes? How are people meant to find them? Can we make it a thing where descriptions are put up with new climbs?

Are you having a laugh?  I call troll or extreme ignorance.

How many route descriptions have you added to this database?

People are meant to find routes by consulting the latest guidebook, which normally means buying a copy! There are some route descriptions on here, and elsewhere online, so you may find some for your chosen routes if you're lucky, but basically the database exists so that climbers can log ascents - it's not supposed to be a (free) substitute for a guidebook.

If you're a relative novice or if climbing is not your main focus in life and have not really used guidebooks then this doesn't seem to me to that unreasonable a question.  You can call what you like, but I'd say say that you're the one being ignorant here.  Why not give a succinct answer to the question rather than going all "comic book store guy"?

Ah - another "comic book store guy".  Well done.  No wonder the forum on this website is being reduced to a handful of dudes of a certain age arguing the same topics ad-infinitum.

Just don’t mention bolting anything in the uk ffs

You are right, apologies to the OP my comment was a little harsh. As was yours I might add

What about the dudes of a certain age who agree with you and want change (especially better moderation of aggressive responses to new posters) 

There is a point here: if people add new routes to crags I moderate, especially boulder problems, I don't approve them unless there is an adequate description or a photo. But, they are often added with neither!

Apart from routes linked to the Rockfax guidebooks the whole database including the descriptions have been user generated over around 20 years by many different people.  You can edit/add descriptions yourself (copying descriptions straight out of guidebooks isn't allowed for copyright reasons).  To save time many routes have added without descriptions over the year as it was originally more of a log my climbs and sharing information database than a replacement for a guidebook. However with the latest updates you can even generate topos so in the future the logbooks may be even more extensive and function more like a guidebook.

Easiest way is to buy a guide to the crag, either a real, tangible paper one or a subscription one on your phone.

Assuming the original OP isn't just having a laugh but they are relatively new to our sport I hope the following is useful. 

The climbing areas of the UK, from Shetland to Guernsey, are covered by a fantastic collection of climbing guidebooks with both descriptions and (normally) photo-diagrams. They fall into two groups: definitive/comprehensive guidebooks which detail almost all the climbs in a particular area (poor climbs are often not included) and selected climbs guidebooks which detail most of the best climbs in a region. Some guidebooks are produced by clubs such as The Climbers' Club while others are produced by individuals or companies such as the UKC's sister organisation Rockfax (the latter also have an excellent App). If you think you have done a new route you should check the definitive guide not a selected climbs to see if it might be new before claiming your masterpiece!

To see the range of books available it might be best to Google Cordee as they are the main distributor to shops and also do direct sales. If you wish you can then visit the websites of the producers who normally also offer direct sales and may offer some discounts. Expect to pay something in the region of £20 - £35 for a typical guidebook. Another source of valuable information are the experienced members of your local climbing club and some clubs have guidebooks that their members can borrow. 

Happy climbing.