Does varied CMS make any difference?

Hi guys:

I have seen blog network owners are using varied CMS (wordpress, Joomla) inorder to protect to their blog network. Does it really work?

Suggestions Needed

Thanks,
Bryan

Diversification always helps but remember that WordPress controls the CMS market with more than 50% of the share so it would be safe to have more than 50% of your blog network sites run on WordPress.

I have a network of 15 sites all running on WordPress and so far no issues.

Yes
its one less footprint