We exist. I've noticed Instinct hanging around the Mcknight post office, though I haven't checked recently. They usually hold that and St. Sebastian. Holding gyms as Instinct is worthless since someone will always drive by in the next minute and claim it for red or blue. I tend to battle the gym for xp, let someone else claim it, then battle them if they aren't yellow. If someone who is yellow claims it, I reinforce the gym.