This question was just bumped to homepage (appr. 14:30 EDT 2018-05-21). It's About an EOL LTS version that lost support years ago, specific to a kernel version that's a whole generation older (3.x versus current 4.x) than what we have now. If this were asked new now, it would be instantly closed as off topic due to unsupported Ubuntu version. What's gained by having questions like this remain live on the site?
The Community user's choice amongst potential bumping candidates is pretty random, I assume.
posts eligible for bumping are those scoring >= 0 that have gone at least 30 days with no activity, have at least one non-deleted answer scoring 0 and none scoring more than that, and no accepted answer (also, they can't be deleted or closed). [Source]
Beyond that, and the number of views as a weighting factor, the Community user has no means to evaluate the usefulness of a particular question. It's an automated system with limited intelligence.