This isn't related to Gravity Forms the plugin, but to this website's forums. And it's just a suggestion, not a complaint or anything.
But if you use the main search feature on the site, such as at the top of this page: http://www.gravityhelp.com/forums/
It doesn't work very well...for example, try searching for: The link you have used to enter the PayPal system is invalid.
It says there are no results.
Then when you go to create a new forum thread, if I paste that line into the "Title" field of the new post form, and then click into the body of the post, the system prompts me to checkout some possible threads that might be related. One of which is: http://www.gravityhelp.com/forums/topic/the-link-you-have-used-to-enter-the-paypal-system-is-invalid-sandbox-issue
That thread clearly has the exact terms I was searching for, but didn't come up in the search results initially.