I started using DropBox just a few weeks ago. I'm normally very open for each kind of innovation but I just not feel very comfortable with my, sometimes sensitive, data on foreign servers.
Yes, I'm maybe a bit paranoid. But I don't like it. I can remember as the hype with DropBox started I was searching for an alternative. At that time I found the OwnCloud script but it was just the beginning of this project and this software wasn't really reliable.
Me: What would you like to drink: a juice or a tee?
I'm not saying you can't criticize Joomla! Why should I? Joomla! isn't perfect. Joomla! cannot be perfect because despite the simple fact that nothing can really be perfect, Joomla! is a piece of software and I think everyone knows that software is never bug-free.
Joomla! is a CMS designed to be used for many purposes, and as such, has to satisfy a wide number of people. This is a task that is next to impossible.
That means there are, and always will be, a big number of people that will never be happy using Joomla!
Wordpress and Drupal are playing in the same league, and I'm quite sure that there are a lot of people that are not happy with them either.