When they were 1st added, they didn't really change anything for me. They're just...there. And several months later, I still feel the same about the plants.
I have made use of them plenty of times. My teammates did & so do my opponents. So it's not like everyone ignore them. There have been some great plant moments & some horrible ones. But at the end of the day, they're still just....there. They don't affect my League experience positively or negatively. I don't hop onto League thinking," I sure do hope I get to have some fun with the great plants today," or "Man, fuck these plant. Why did Riot add this shit? It's ruining my games." I'm just like," Oh hey look. A plant," and pop them if I can to use it or ignore it if I don't.
I remember last preseason when everyone learned about plants & there was a massive fucking uproar. People were worried that this RNGesus plants system would completely ruin the game & turn everything we know about League on it's head & blah blah bla. And instead.....they're just there.
It's at the point where I won't even care if the get rid of plants.....Okay, maybe the vision plant I'll be a bit sad about. And that's only because I'm have the heart of a support player & have too much of a hard on for vision. Even then, they could just add something to replace that plant. But overall, I don't care if they stay or go.
Please note: This is based on MY OWN EXPERIENCE with the plants. I'm sure other players would have different opinions on Plants, especially Junglers. I'll admit, I barely jungled in the last year & I've never been a Jungle player. I'm sure Junglers will have more informed opinions on plants since they can make use of them on a more regular basis.