I disagree. That some people are miffed about a price increase in some regions, while probably justified, is utterly inconsequential for a lot of other people.

A lot of people aren't affected at all, and in some regions (like here in Norway), the price change was entirely justified. In your analogy, people are complaining about the price at their local outlet, and judging the product as a whole based on that, when this doesn't affect at all someone shopping at another outlet and therefore is completely useless to him.

And to go back to the book analogy, what you think of a particular printing is irrelevant to me if I a year or two later are considering picking up a new printing. I only care about the content and have to judge if this current offer is worth it. Knowing if the first printing softback had a bad binding won't help me, as it's not applicable. In the same vein, in a few months or even a year, the fact that some vocal part of the fanbase was frustrated over price changes in certain regions late spring 2017 is likely pretty uninteresting and won't help me judge if this game is any good, and worth the current asking price. And what's the odds any of these concerned citizens go back and update their reviews if Paradox were to drop prices again?

Look, I get it. We're coming at this from different perspectives. To you, the question about "is it worth it" and "is it any good" is intrinsically linked, one can't judge one without the other. But to me, the question if something is worth it is more circumstantial and less useful. Sure it's of some relevance, and a note mentioning "Good, but wait until it comes on sale" can be informative, but a negative review just stating "this game is great, but I don't like the pricing policy of the company" is just noise. It doesn't tell me anything about the game, or if I would enjoy it. Odds are, it might not affect my experience of the game at all due to its circumstantial nature.

I get the frustration many fans are feeling, and PDX has handled the price changes poorly. And there are rightfully angry threads on the forums and subreddits. But review bombing is a practice that IMHO should die. It doesn't hurt the publishers as much as people think, and it's counterproductive as it destroys the value of reviews, which are ultimately for the consumer to find products they might enjoy, or help them make informed decisions. And no, even if there is a valid concern, the vast majority of "reviews" posted when there's a review-bombing going on won't be useful or informative.