@Si: I'm offended that you would consider my opinion on this to be self-serving.
Oh, fine, I'll take it back.
However, I think a self-serving "this is too hard for me, let's make it easier" attitude comes across a lot better than with the patronising "this is too hard for them, let's make it easier" attitude that you are actually pushing.
But how many users do have that ability? Completing the signed interstates in 49 states + DC is still a massive undertaking, but a less costly one (in terms of time and money), and, for some, a less intimidating one.
You've totally and utterly missed my point that this site isn't a game to win, and that, even if it was a game, 100%ing usai is not just winning, but the gold-plated epic challenge win that's equivalent of completing all the achievements - unlocking all the original items (game makers add more, for both wider appeal and to give the hardcore set more to do), completing all the original side quests, playing for long enough that some simple action has been done 1000 times, etc that 99% of players aren't fussed about doing.
I totally concur that completing the signed interstates in 49 states + DC is a massive undertaking, I just don't think that achievement is diminished because its not accompanied by 100% and ranking=1 next to it.
Living in (or near? hard to say now) Europe, you may not realize there are people with the means to travel extensively
I'm
very aware of that, being someone without the means to travel extensively - I've added only a couple of hundred miles to my travels since the site relaunched (obviously more has been mapped as systems have been added) and only a few 'long' trips (at least wrt clinching) that have all been only a day long (I've under 10 days more than 100 miles from home in the last decade).
Those without the means to travel extensively, are clearly not people who will consider travelling to 49 states + DC and driving 45,000 miles plus as doable. It doesn't matter to them whether or not there's not the added difficulty of trips to Alaska and Puerto Rico, because not only is Hawaii something just as excluding, but the dozen or more cross-continental road trips are too!
And, lets say someone has travelled so extensively over the lower-48 and Hawaii that they have clinched all the signed interstates. Surely they have both the time, money, and sense of adventure, to make trips to Alaska and Puerto Rico should they wish to do so in order to get that 100% bragging rights?
These users deserve a shot to complete the "flagship epic challenge".
So what you are saying is that the "flagship epic challenge" shouldn't challenge those, whom you feel sad for because they don't step out of their comfort zone and travel to places like PR, to step out of their comfort zone and travel to PR? What a weird argument.
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However, since in every other system within the HB, the lack of signage prompts almost immediate removal
Not the case at all - there's many systems where that isn't the case, but if the consensus is that they all should be, I can remove those systems so that can be the case.
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I'm no fan of the "it's relevant because we say it is" philosophy.
I'm not a fan of "it's not relevant because we say it isn't" philosophy, especially where 'we' isn't a consensus.