Plus, if the competition wasn't so gruesome and that evaluation criteria weren't shallow, the pressure to pad one's CV wouldn't be so great.
"Holy ethical violation batman, the slaves are slipping out of their manacles and they certified on their honor they would not do that"
I know it's an oversimplification, but the essence of it is true: curing cancer is already hard enough. It shouldn't be made any harder by ambitiously exceeding your dead tree quota.
Sauce: abandoned an academic career :-)
I wouldn't minimize the problematic quality of having a bunch of crap in research or what-all else. But the thing is that, as you know, the academic world puts extreme pressure on people to both follow the rules and to makes themselves look good. When any violation of a rule-set can be called an "ethical violation" when it's really not that, it cheapens the whole concept of ethics. Which isn't surprising given how monumentally unethical it is to set up system.
Essentially, I can't help seeing people with a lot of power engaging in seriously unethetical things and happy to blur the lines between that and people cuts corners in response to pressure (and that stuff winds up being more pressure on people which doesn't actually stop the corner-cutting).
For fun, trying googling "It increases the amount of crap", and you will find that your very own post meets the academic definition of plagiarism. Both for containing a single plagiarised phrase and percentage wise (46% plagiarised!).
I've seen post grads spend weeks using software to look for identical phrases of 4 words in their final work and previous work and then slightly rephrasing a sentence to avoid duplication of a common phrase and the dreaded self-plagiarism. Then running the thing again and inevitably finding the new wording was a duplication as well. I couldn't see it as anything other than a colossal waste of time. If you are writing about the same topic it's inevitable that you will phrase things in the same way at times.
All of this does nothing to combat the CV padding you worry about because it only concerns reusing the same exact language, not talking about the same ideas over and over in different ways.
As an outsider it seems that academia has descended into a kind of madness about plagiarism and self plagiarism. I think this is largely thanks to software companies trying to sell their plagiarism detection systems.
I don't feel uneasy because I'm doing anything remotely unethical---I'm not. I feel uneasy because it sounded a bit like the description in this article was over-broadly defining self-plagarism.
I will say that academic (i.e., scientific) conferences should never include "recycled" or "old but interesting" material. There has to be some new research results. Otherwise, it's not science. The point of these conferences is not to entertain, it's to push forward the scope of knowledge.
Either way, I agree with everyone else in this thread as well. The system of publish or perish is 1. dumb 2. old 3. not moving science forward. It's become more of a "I need xyz papers published this year" instead of "I'm curious about xyz and how it solves abc". That isn't science, it's a career/ego metric.
Good news is that there are groups (like myself, science exchange, figshare etc) who are working to fix that. It's a matter of time, but a social change to science is starting.