This is not an answer to your post per se, but rather some thoughts sparked by one particular comment. They may or may not be helpful to you, but these are some thoughts which have been brewing at the back of my mind for some time.
(I should probably also say that, if you want Chris to see your post, you should add "tech" as a tag so he'll see it. When it comes to changing things on WikiTree, if Chris doesn't make it happen, it doesn't happen.)
- too much informations on pages (to be exact, somebody written "You added to much junk info to the pages ...")
If you are saying here that the top, right side and bottom of each profile page is cluttered and disorganised, I'm thinking that your point would be better served by giving specific examples of which elements should be moved where, which should be displayed in a different manner, and which should be removed.
I can't even count the number of projects where everybody in a group agrees, "This is terrible and needs to be fixed," but then when it gets down to it, everybody has their own ideas about what should be changed and what should be left alone, and since nobody agrees, nothing gets done. General complaints aren't actionable. But specific proposals for change are.
On the other hand, if you're complaining that people have put too much information (or, more precisely, information that you don't find useful), that's a whole different topic, and raises two further issues:
The first issue is that WikiTree (and, for that matter, the family trees [not sources] on other sites like FamilySearch, Geni, MyHeritage, FindMyPast, etc.) are all user-generated. Every profile on WikiTree is created and maintained by users, and most users are amateurs. Granted, we do have projects, like the Sourcerers, Connectors, Biography Builders, Profile Improvement, Data Doctors, etc. which encourage people to go through profiles and improve them in various ways, but WikiTree doesn't pay anybody to go through profiles and fix them up.
Not everybody gets that. I've seen any number of posts in G2G by people expecting to be able to log in, say who their parents are, and find their family tree all worked out for them.
Now, it may be that there's enough demand for this sort of thing that there could be a site where people could enter their information, and be added to a single worldwide tree where every profile and every connection was rigorously sourced, every biography was professionally written, and none of the profiles would be for people who never existed.
But that site wouldn't be WikiTree. In fact, it would have to be a pay site, and the fees would have to be pretty high, because running it would require hiring a bunch of professional genealogists.