Blogging as an seo method, do you allow COMMENTS or not????

[bobo.cx]

Hi people,

I am looking at using blogging on my site to increase rankings, to get repeat visitors,

Ideally it will also allow me to talk about my dog walking experiences.

Blogging can do all of these things, but I am using Joomla and not sure of whether the default module for blogging works well enough. Sure i can use it, but i dont want to do a few months then have to convert to something that really works well.

The major question I have is whether to allow comments or not. If I allow comments I might get more visitors, but they might just be spammers looking to put their URL up. And I will have to moderate yes?
If i dont allow comments, I may not get any repeat visitors ...

Does anyone have a view on how to manage blogging from an seo point of view?

Many Thanks ...