4. I recommend to stay away from Godaddy's hosting. Their servers use custom configuration that messes up quite a lot of software packages, from my experience their support is limited to copy/pasting knowledge base articles without reading the whole ticket. I have moved 2 clients away from them so far.
Get hosting from a "real" hosting company.
Every time I help someone on GD hosting it's nothing but time consuming annoying issues.
Which tend to go away 100% when they move to say Linode or eukhosting, leaseweb or rackspace.
Godaddy is the subject of a lot of attacks (more than average and beyond normal).
Forgetting that... You need only Google the words "Godaddy" and "Forum Hosting" to find the truth or search here or checkout webhostingtalk.com ..... All the above will tell you how poor Godaddy is for php and mysql.
This is true no matter what forum software you decide.