It's fine to report such a problem, but "left a nasty taste in my mouth"? Come on. You make it sound like they shouldn't have even bothered, when this is one of the coolest things to have appeared on HN in a while.
All: Before responding to new work with swipes, dismissals, or nitpicks, try mentally multiplying their effect by 1000x. That seems to be about the magnitude by which we underestimate how such stuff comes across. Adjust accordingly, and then you can offer criticisms and corrections without adding air pollution.
Sorry, man. This is a pet peeve of mine, as you can see from my comment history. And I'm not the only one, those comments often get quite a few upvotes. I can see how it must be frustrating to launch something only to have a comment like this, but it is my honest not-trying-to-be-mean reaction to a site that breaks the back button, I feel very frustrated and it's off-putting. The website is a cool idea as I said, so to be clear, I do not think that they shouldn't have bothered.
I believe you, and didn't think that you meant to communicate that. The trouble is that individual signals that aren't objectionable compound into global problems at scale. It's a community problem more than an individual one, which is why it's so hard to correct.
One thing we've learned is that you can't judge this phenomenon accurately by upvotes. Indignation of any kind reliably gets more upvotes than anything else, by a large margin.
The iframes load progressively as you scroll (vvo/lazyload). Every time one loads it requires you to click the back button an extra time (in Chrome at least).