You don't mind potentially making safari crash more? You don't mind adding to complexity, disk space used, memory usage, potential vulnerabilities?

I do. The less "installed" software I have to go wrong, the better.

I don't mind making Safari 'potentially crash more' - I only mind if it actually does crash more. Since Safari crashes are very few and far between, and haven't noticeably increased since I installed Silverlight some time ago, this potential problem isn't high on my list of priorities.

I suppose I can always go back to Lynx if these things really bother me too much.