Well, I think there is some confusion as to whether the Alicefashions donation sets will be back (as paysets). If not, congratulations on going free!
As to creating paysets being legal, here's a quote from money better spent I linked in my earlier post:
I've seen a number of legal opinions floating around on the subject of paysites and I figured I'd chime in. It may come as a surprise, but in fact, sites charging for Sims 2 related objects are violating copyright laws and Electronic Arts' copyrights. In fact, what paysites are doing is illegal even without the EULA that comes bundled with The Sims 2. Furthermore, because what paysites are doing is illegal, any potential copyright claims that are made on most user-created content are invalid in a court of law.
This is a direct quote from EA's EULA:
You may include materials created with the Tools & Materials on your personal noncommercial website for the noncommercial benefit of the fan community for EA's products, provided this is beneficial to the product(s) in EA's judgment, and provided that if you do so, you must also post the following notice on your site on the same web page(s) where those materials are located: "This site is not endorsed by or affiliated with Electronic Arts, or its licensors. Trademarks are the property of their respective owners. Game content and materials copyright Electronic Arts Inc. and its licensors. All Rights Reserved." You will not represent that your site is endorsed or approved by or affiliated with EA or our licensors or that any other content on your site is endorsed or approved by or affiliated with EA or our licensors.
Why EA does not enforce their copyright, I have no idea. However, this makes filesharing donation sets completely legal.
ETA: Romain, this site does not target only Alicefashions or other smaller sites. Our main "enemy" if you so wish to call it, is the TSR, the biggest paysite there is.
We also have here several free creators who know how hard it can be to create new things for sims. However, these people feel that they have no right to ask money for their creations, even if it took hours to make them perfect.