After 6 "bumps," maybe this will be something worthwhile. I didn't think of it, although at some point hopefully the person can be recognized. It is definitely a "Least-Known" item.
But, under the hood, on each side, where the shock struts come through, on the 2011 - 2012 there is a small plastic cover. I believe it might have been changed for newer LEAFs. The way Nissan designed it though, it holds water and causes unacceptable rust to the threaded part of the strut and the nut attaching it. I clean it out on occasion and put grease on the parts, but the damage has already been done and I'm only slowing it down a bit.
The Australian LEAF group has run into the same issue on their forum, and there is a better part that people can get from Nissan, but I'll have to look up where I've got that data. I took it to Hill Nissan near where I'm at (a great dealership IMHO), and when the service manager looked at it he said it was possible to hurt the strut seal in removing the nut if it isn't done correctly, so they would have to do it and it would cost me a bit of money, and also said by now it really isn't worth it after almost five years.
But, if you have a relatively new LEAF, I would get some grease on the strut and nut assembly under the hood on each side. If you can prevent the rust from starting, you are so much better off. I'm a bit upset that $0.02 of grease could have been used, and would have greatly helped, but wasn't done at the factory, and is so obscure that people don't think to look at it.