Haven't been to Riverside personally but I've been following reports coming out of Macon for a couple years now and something does seem to have shifted recently. More people reporting shadow figures near the older sections, which tracks with what I've read about sites that have a lot of pre-20th century burials - there's often a kind of layered energy there that can become more active for reasons nobody fully understands.
Living out in Roswell I'm a bit far to just pop over and check it out, but I'm curious what specific activity you're talking about. Is it auditory stuff, visual, or are people picking up on it more with equipment? Also when you say "worse" do you mean more frequent or more intense, because in my experience those aren't always the same thing. Would love to hear from anyone whos actually been there in the last few months.