It's faster to type your desired pokemon name to know his locations than checking route by route. Also the spawns may change when the game will be fully released. It's much easier to delete one row in a table than rebuild whole wiki page.

Greetings,

Sebowar.

P.S. Of course after game launch I will start collecting info about routes and create one page per route with:

- trainers and their pokes,

- berries and hidden item locations,

- catchable pokes,

- avaible quests.

creating many pages is just stupid

once you see  apokemon you can get its details

You can get it's details, true, but you need to see him first. What if that pokemon cannot be seen in either pokemon battles and as "NPC" walking around map? Will you waste hour or two trying to find him in place he might not be in? People usually want to know such information before hunting and here comes the wiki.

i'll hunt even it takes 10 days

It's your choice, but common user don't have so much time to waste.