I am not touching mine, and when the tank leaks I'll change it out to one with out an anode rod, even if I have to buy a marine one.
I try to be pro- active on all my maintenance, so the very first year after buying this new trailer I pulled the anode to change it out. When I put the new one in (using teflon tape), It leaked. I tightened it a little more and it it leaked worse. I took it out and re-did the tape. It leaked again. I tightened it more and it still leaked worse. In exasperation, I tightened it so tight, I thought I might end up turning the whole tank over and that got it down to a leak of several drips an hour which evaporated in the pan. A few days later the drip stopped completely, and it has not leaked in the past two years, (seven months each year of snowbird use.
I never could figure why one brand has a anode and another doesn't My home electric water heater is thirty years old, and I just drain it once a year using the drain valve.
Jack L