Funny enough, on a local glassdoor clone the guys who failed technical interview discussed exactly this possibility precisely because the post was open for so long:)
I worked for a company that kept one job posting open for more than 4 years. They've used it to hire more than 100 people, but unless you worked there you wouldn't know.
Kind of pointless comparing Russian icebreaker number to anyone elses'. Russia is basically a huge pile of snow next to a huge floating pile of ice (geographically, not population-wise, but still). Nobody has even 10% of motivation for building icebreakers that Russia has.