I'm not sure if I'm the only one, but whenever I access the forums on my laptop, I find the reaction UI to be just a little bit hard to use. I mean, it's easy when you just want to Brohoof something, or even do a "thanks." But what if you wanted to do something, like a "Delighted Giggle", that's aaaalllll the way over there? Well, you'll need to move your mouse in just the right way so that it doesn't shift off the UI. This can be a little challenging to do quickly and efficiently at times, especially since the UI immediately closes when your mouse moves off of it. I think this could be improved a little. Maybe if the UI stayed up there for just a second longer. Or if there was a system similar to the one on touch screens, where you click on the icon and select which one you want.
But hey, that's just a suggestion.