WordPress.org

Can I put more than 1 inline post on a page?

Yes.

Does this act recursively by including posts within posts within posts?

Yes, but not when using the deprecated code convention.

Why does a post not seem to show even when the plugin is working?

Do I need to worry about causing a recursive infinite loop?

In order to prevent the recursive features of this plugin from causing an infinite loop, an inlined post limit has been set. If a post has already been inlined using the plugin, it will not be inlined again; instead an HTML comment will be inserted. If you think this might be happening, use your browser to view the page source. The comment, <!-- ggis-InlinePost already included postID =??. Inifinite inlined loop avoided. -->, is inserted whenever ggis-InlinePost purposely does not inline a post.

What usage do you recommend as best practice for this plugin?

Because of the recursion issue, I only inline post onto pages. WordPress does not strongly differentiate between posts and pages other than by a post_type flag. This means you could inline a page into a page. Best practice is to only inline posts into pages.

How can I adjust the inline post's appearance?

You should be able to fully control your form's appearance using CSS. The HTML output is fully embedded with CSS tags to make personalization easy. The DIV tag is of the form:

<div class="ggis-inlinepost" id="ggis-inlinepost-f56-p69">

The class applies to all inline posts but the id specifically identifies the post inlined (f) with the page it is inlined onto (p).