Well, it's not a true blog, where you have a "recent entries" and a calender module to see posts by date, etc. But you do have the ability to write articles and enable comments and ratings for the page. You could control the most recent "blog entry" being first visible by posting it on the Home topic and keep previous "blog entries" as topics in the Wiki.

The wiki at it's core functions as a module that can:

Record articles as "Topics" in the wiki

Provides linking syntax to navigate from topic to topic

Provides an Index capability to view all topics/articles published in the wiki alphabetically

Provides a search capbility to locate keywords in the topics/articles published.

Enables users you define to edit topic contents

Enables a "Comment" capability per page/topic for user comments

Enables a "Rating" capability per page/topic for user topic ratings

Not sure what you mean by "page". If you're talking about a DNN tab that appears on your DNN menu and you want a NEW wiki module added to that tab, then no, that is not possible. That would require a custom module that you could develop to allow a user to create a DNN tab and automatically add a new wiki module to it, where the user would then begin adding topics and other could begin editing and commenting on the new page's wiki module topics.

If by "page" you mean topic in the wiki, that after creation, appears in the wiki module Index, then yes, the user could add the correct syntax to link a new topic to an existing wiki topic, then begin editing/adding to that topic. The new topic would appear in the wiki module index on that page, others could edit it and others can begin adding comments to it.