I don't really think the tag is appropriate as it would pretty clearly be a Meta tag as means different things to different people and it's useless as the only tag on a question; it doesn't actually tell you anything about the domain of the question. Further, the only real information you can glean from the tag is "this is probably too localized to this person's exact personal situation".
I'm familiar with the sort of questions you're referring to (ones that solicit general advice and not specific or constructive answers). These questions at best need cleanup, or at worst are unanswerable.
Why not just answer them and move on? The more we allow personal questions relevant to only a single-person the more it's going to be expected that we allow more of them. A big reason Salary and "which job is most coolest" questions are laid out as Off Topic in our FAQ is really because the answer is up to the specific person (at a specific time and specific place to boot).
In addition, reputation earned from dubious questions like that often says little about the actual value of the answer; once upvotes mean "Yeah, I agree with this!" they've lost meaning. Personal advice questions almost always trend into this territory as answers aren't focused. Another problem is these questions often solicit general advice meaning two people could give completely different answers solving different aspects of the problem; it's just not a fair playing ground when there's no clearly defined problem beyond "I hate my job" "Should I quit" etc.
Answers here aren't just for one person; we're not a help forum. Answers here should be for everyone in a similar situation. If you have to give advice that may only help a single person, you're probably wasting your time (and all reader's time to boot), instead questions like this should be closed with the appropriate close reason. This is often Too Localized (if it's a personal situation must be answered once for each individual person) or Not Constructive (soliciting general advice or opinions on a matter).