I looked into your current plug-in code. I see that you do not use any of the regular WordPress content or excerpt filters when processing the review read in the custom query in template-functions.php. By doing so you do not give developers any way of customizing the review text about to display.
It would help if you add an apply_filters in function grfwp_print_review for variable $review.
This is a small change for you and as such I can code an add action to fill $review->post_excerpt if it is empty by analyzing $review->post_content either whether there is a more tag or by using the excerpt length available.
Is this something you are willing to think about?

Was my report viewed and picked up?

If I remove the excerpt part the text comes back but the whole text. I explicitly use <!--more--> in the text (I have book reviews from other sources on this site) so I need this to be honored. Can you please investigate?

I also use filter grfwp_post_meta to change the meta data. Apparently there is some change there too? I still I have to investigate in detail.

No I am referring to the web site’s display on overview (that list of reviews in a non particular order).
It shows the stars, read more and the reviewer’s name but the text up until read more that I use is gone. No text at all.
Each review on the site of my client has the WP read more string in its text.

Does that explain it better?

I am no longer using your plug-in but in the file I have (version 2.10.0) I see this:

	public static function groups_admin_menu( $pages ) {
		foreach ( $pages as $page ) {
			add_action( 'load-' . $page, array( __CLASS__, 'contextual_help' ) );
		}
	}

But perhaps this was already corrected?

No reply in 2,5 months? Is there still support?

Is there still support for this plug-in?

Any update on this one?