I know multisite in general works here, but I need a few things clarified.
1 - Cloudflare integration at one point didn't work without www. Has this changed, or would multisite work if I installed it on host.domain.com and put all other sites on their own subdomain?
2 - Will Cloudflare, as integrated by Dreamhost, work with each site in the network, even if I have to set it up manually?
3 - Are memory limits set per domain or per subdomain? I seem to recall they are per-user, but in the case of multisite I guess I'm more specifically wondering if each Wordpress site within a network has its own user.
4 - What's performance like on shared hosting? Are there appreciable differences from a single Wordpress install?
5 - Bonus: Does DreamPress support multisite?