Okay I don't know if I'll ever be able to make you understand the fact that, actually, I deleted nothing, the guild page is still there, so is the players, the mounts and the morphs ones.
ALL I DID was replacing the list full of dead links by a automatic list that adds up every one.

The best way to show it to you is to make you test it:
Create a page, whatever the type, a mount, a guild, a morph, but it would be simpler to do a player for testing.
Click ''Contribute'' then ''Add a Page'', name it with your In-Game Name and then add up the template ''Infobox Player'' and fill that up, now you can add description to your page, you can do whatever, it's yours ^~^.

Anyway, when all that's done, look down for ''Categories'' add up ''Players''. then after saving it, browser to the players page (accessible from the menu) and you'll see, magic, your name/page was added to the list! regrouping all existing pages of this type.

What I meant to say is that I didn't deleted pages for fun. Technically nothing was lost because of the fact that mounts that were already added are still up, in the list, and dead links are gone. Whenever a mount will be added to the ''Mounts'' category, the mounts page will be updated, it makes it clearer. In fact, take a look around, that's all other wikis works too, categorization helps you a lot.

And for the part where I deleted source links from guides, I just thought this wasn't necessary because we didn't needed to know who created that from another website, we need the information, that,s all. But then I realized you were right, links, sources and credit are very important. I apologize for doing this bad move.