with the new testing system, you MUST click on the picture to apply. There is currently no way to add you as a tester (inside ribblr) unless you apply by clicking the photo. This means that only replying to the post will not allow you to be added to the test within ribblr and you will not receive your karma points.
edited to add:
as I was writing this, a solution was added, but it is still not nearly as easy on the designer as just clicking on the picture.
it’s such a sleek feature that clears up so much clutter in the community, ensures you were seen, and makes life so much easier for the designer, so please try to remember to use it! 