All your bike-park features – table tops, jumps, big berms everywhere on wide fast tracks that are a massive ugly scar on the countryside.
Firstly the jumps at a lot of trail centers are often awful, lips to steep and high for the length of the jumps so you have to squash the hell out of them; or two mounds meant to be a double going uphill. If they are going to put jumps there the people who build the jumps should be able to jump so that they know how to make it flow.
Secondly a lot of the berms are in the wrong place at trail centers making them completely useless anyway.
In essence they should build all the features you don’t like but only if they are going to build them in a way that works.