There is no link to the plugin's page (http://wordpress.org/support/plugin/wp-banners-lite) from the Plugins Dashboard description (wp-admin/plugins.php). Instead it goes to the author's page (icprojects.net/wp-banners-lite.html), which does not have a shown link.
I was a little perturbed when I found the potential link is hidden under a "Like or share this page to get free download link!" where you must link it on Twitter, G+, or Facebook before you can get the link (if it comes back here, I'm uncertain.)
I'm fine advertising your plugin, but I will not be *forced* to do so.
This got me to thinking, What does WP say about this?
WordPress.org: Detailed Plugin Guidelines
12. The plugin page (aka the readme.txt file) may not have "sponsored" links on it.
It depends on the interpretation, but I'd call arm-twisting your users to advertise for you might be considered "sponsored links."
Now then, I had to to deal with that, and I had to google my way here. I was going to post my feedback on how great this plugin is, how I was able to incorporate it into my site with relative ease, and how it tracks the number of displays/clickthroughs in a nice and easy-to-read table, but from a 4-5 star review to 2 stars.
-Greed is evil.-