<p>Why should things be protected from editing? It also makes it way more inconvenient to cite … </p>
<p>Honestly, it’s information – information is supposed to be revised and distributed in a medium that transcends all boundaries – it is how society progresses. I mean, I could edit Bush’s speeches too (and boy do they need it!) – but Bush isn’t worried about someone passing off his own speeches (if they are his own) as their own.</p>
<p>Regarding equations, what I also do is make my equations in the Wikipedia sandbox, take the urls of the resulting images and paste them onto my page.</p>