Today I will be cleaning my 'creations' up and making them available for the community again. Please delete any previous version you have and replace it with the new one. I wanted you all to know the exact process I would follow. The new file will have the word "clean" in it for easy identification. Again, this file is harmless and only a nuisance. If you do not create and share files you can choose to do nothing and simply live with it.
I'm keeping in mind that @crinrict's original blog post, Feb 18, 2014
here, indicates that individual users can usually delete this from their games, and therefore from content they create and share going forward, simply by deleting through the Sims 3 Launcher. But, if you have created and shared content, like I have, you will probably want to clean that up and re-post it. More on that later.
Now,
simply is a relative term since you have to pore through page after page of content to find the offending item. But, I feel this is still easier than juggling folders' worth of content. Personally, I couldn't use/test this because my Launcher kept crashing before I could locate the file to uninstall it. So, I am doing the short re-install ZeeGee is describing. It is actually quite painless. Unless you have a lot of non EA custom content. But, like me, you'll probably want to check that for bugs before reinstalling it anyway.
To do that there is a simple program called TheSims3PackCleaner. Affectionately called Custard (I don't yet know why.) It will look for errant content in downloaded files before you install the content and allow you either to remove it or just not to use the content. I've seen it mentioned for years but never used it until now. Obviously, it will now be my best friend. I don't know if I am supposed to link to outside software from this forum, but send me a message and I'll send you a link.
As for re-posting my created content. Here is how I am doing it. Today I will create a new game. I will load every lot and every shared Sim/Household into that game. I will then delete all of them from my bin so that no other versions exist. I will quit the Sims and move any copies I have of them to a quarantine folder (just in case.) Then I will follow ZeeGee's instructions for purging my game. I will then return to that saved game and confirm that the Arezzo Bathroom CounterRight is no longer showing up in the build catalog. At that point I will upload the now clean files back to the exchange.
Again, I'm so sorry I was part of this problem.