You can be as self righteous and condescening as you like, but it doesn't change the fact that this is a mission critical part that has a record of failing with little to no warning, with dire and potentially lethal consequences. LBJs are not typically a normal maintenance item, so please don't try to paint this as a "neglect" issue. This LJB either works or it fails. It's not like these things have zerk fittings and they're failing because people aren't greasing them properly. It's a bad design, plain and simple.
Oh, and "my buddy the Toyota tech sez..." is not the same as WHAT TOYOTA RECOMMENDS.
They are not typically considered a maintenance item in the sense that you must replace them every XX yrs and/or XX miles; BUT, I am pretty sure if you look at Toyota's own
maintenance schedule it will tell you to periodically inspect all the ball joints and replace when deemed necessary.
I think you're kind of fighting an uphill battle here when trying to say that Toyota does not recommend replacing them as a maintenance item, when it's probably written in the
maintenance schedule handbook that comes with the 4runner, lol. I think it's pretty clear that they do in fact tell you to check them periodically and replace them when the service life has been reached.
My point is, bad design not withstanding, it is still a vehicle owner's duty to make sure all parts (especially moving ones) are in good working order, and replace them if not. If you don't up keep these parts, it kind of is neglect...
As a matter of fact, some state's annual safety inspection even requires them to inspect such items for wear and and fail you if necessary, so if anything you can blame the safety inspectors
I understand that perhaps the way they are designed makes it hard for you to inspect, but you still can inspect them some how right? I mean it's not a totally sealed design where you just can't see it period.
Every vehicle has it's quirks and I consider these type of issues just something you have to deal with if you want to own this particular vehicle. Yes it sucks, but at least it's something you can do something about proactively.