I think a more appropriate suggestion would be that you frequently check your linkages for looseness. If the clevis is loose (has lateral play) on the threads, replace it. If the clevis is snug on the threads (no lateral play), then you can decide whether you would feel more secure with a lock nut or Loctite on the unit.

I'm flying one plane for a week or two, then hanging it up and taking one of the others to the field. At that time, I always go over the linkages. I have seen clevises loose on the threads, and I've replaced the pushrod as a result.

Loctite, Lock Nuts, Nylon Clevises, they all deserve an inspection from time to time, start inspecting linkages and decid how you want to maintain them.

Good luck,
Dave Olson