My wife and I have stayed at Wickham park a number of times. We stay there for the easy (walking) access to the performing arts center on the campus of East Florida State College, which is right next to the campground. We have never had or heard of any problems during the times we have been there, although we have seen what I assumed were homeless people staying there.
We are now camping at another Brevard County Park (Long Point). It's a nice campground, particularly if you have a boat since many of the sites are right on the water with boat access. We got here yesterday but had plenty of rain and winds. Today was windy and cool. Haven't even put the boat in the water yet. I spent part of the day today getting a flat tire on my boat trailer fixed. :(