<p>I'm currently using Wordpress to run my website.  However, with each new release I become more concerned with software bloat and the convoluted table structures used to store my data.  Maybe this is a fruitless pursuit.  Features are always added to blogging software until it claims to be a CMS--and at that point your data is probably stuck.</p>

You do have the option of sticking with the 2.0 branch. This will be maintained with just bug fixes until 2010. Take a look at
http://wordpress.org/download/legacy/