Quote - They're not ego folders. They're called "controlled namespaces".

Imagine the grief you'd have if every vendor who made, for example, an evening gown called it "Evening Gown". Upon loading two different vendor's products, you'd end up trashing the one you installed first, in favor of the one you installed last.

By creating an eponymous folder above the product, such collisions are completely avoided. (Assuming no two vendors have the same name, which is pretty likely.)

Which is great if you don't actually have very much in the way of content.  Some of us have 1st world problems, i.e. runtime collections approaching half a terrabyte or more. - for us, ego folders are one (of the many) banes of our existence.  From something I wrote last year:

Allow me to show you what I, as the customer, have to deal with every single time I fire up Poser........

I decide to make a render.  Load Figure (it can be any figure)  Figure needs an outfit.

Go to the character folder to add clothing - Am I looking at clothing?  No, I am looking at 100+ vendor names (aka ego folders).  Now I have to open EVERY SINGLE ONE OF THEM until I find the outfit I am looking for.  If I am lucky it is just 1 ego folder, if I am not, I have to drill down yet another level - for every single vendor.

Do I like the default material?  If I don't, I need to change it.  Now the real fun begins.

Did the vendor follow Poser standards and make .mc6 files and put them in the Materials folder?

If yes, then I go to the material room - I am once again confronted by 100+ vendor names. No problem, after all I know the vendor name from rooting around in the character folder, right?

Not always.  Because I may have also bought a 3rd party add-on pack.  Now I have to root around in 100+ vendor names individually, until I find what I am looking for.  And yes, I do have to open every single one of them, because most vendors that make add on packs don't include the name of the base product, and then there are the vendors that use differing folder names between character and material and/or pose folder.

If no, I have to do the exact same thing in the Pose folder.

If I am not for sure, guess what?  I get to do it in BOTH folders, because vendors can't follow the established, 8+ year standard.

Rinse & repeat for EVERY SINGLE ITEM IN THE SCENE.

Why not use the Poser search function, I hear you say?  Try it sometime.  Because of how many vendors name things, the search function is worthless.

An easier solution is naming a product Evening Gown by .  The vendor gets their ego stroked & the customer can actually find something.