Question: There have been a lot of one or two line answers (very brief) on the main site. Most of them, almost all of them IMO, only suggest one or two things to do and never explain why they would work. Though, such answers might be correct, but since sometimes they get upvoted and stick around longer, it is projecting an image that such short answers can be posted here.

I don't want to single anyone out, but this is an [example](https://interpersonal.stackexchange.com/a/6122/29). It suggests to do one thing that the OP would do, but there is no explanation about why it would work. [It has been stated](https://interpersonal.meta.stackexchange.com/a/1265/29) that answers here should not be mere suggestions and must explain how and/or why they will work.

Though, we have taken an approach to downvote and comment such answers and it's been doing a nice job. But still, there are more answers like this. And it gets worse when the question gets in HNQ and they start to get more and more upvotes.

On the Workplace SE (though I can't say about other ones), I have seen a lot of one-line answers getting numerous upvotes. And it seems that the similar behavior is now appearing on IPS as well. IIRC, answers on SE should explain why and how.

So, what should be done with such answers? Should we only downvote and comment (or a post notice by moderator) and move on, or we should take stricter action such as deletion?

A related answer has been posted on [Workplace Meta](https://workplace.meta.stackexchange.com/a/4901/65039) as well.

Answer: 
As an alternative to @vylix's answer, I'd offer that *education* through commenting is a better teacher than a simple vote for deletion. [This very thing happened to me](https://interpersonal.stackexchange.com/a/6188/3013) - no comment was offered. Just a down vote and vote for deletion. Fortunately apaul linked to this meta question so I could learn.

Absent constructive feedback users will not get the message that one liners are inappropriate for this SE site.
The [accepted answer](https://interpersonal.meta.stackexchange.com/a/2019/9053) says,

> 
> Provide some evidence, experience or back-up for their suggestions
> 
> 
> 

I'd like to reference [Good Subjective, Bad Subjective](https://stackoverflow.blog/2010/09/29/good-subjective-bad-subjective/) -- which suggests that good answers are based on references and/or personal experience:

> 
> The folks at Moms4mom owned up to the subjective issue and came up with a set of principles to create useful subjective discussions on parenting: the "Back It Up!" principle. "Back It Up!" means that your answers must be based on either:
> 
> 
> * Something that happened to you **personally**
> * Something you can back up with a **reference**
> 
> 
>