There is more than one answer to that question. For example this was written in Barrie England's answer (emphasis mine) in both email and conventional mail a postscript can be a consciously chosen device for drawing attention to what it contains.

Jon Hanna says, I'm going to contradict the other answers by saying it would just look plain wrong to me

@Mari-LouA in old days we use to write P.S for after thoughts. I suspect that it was simply use for entirely different thought. In my scenario, I am concern that email can be edited, if you have after thought(s).

No one is going to say adding a P.S is "wrong". How relevant is it to write BTW ("By the way") when we can simply edit and add that piece of information seamlessly? In informal correspondence, I have even seen P.P.S and P.P.P.S. in light-hearted emails. People will have their own preferences and I think the answers to the older question clearly show that.

So, according to your understanding, it means you can write P.S. and crack a joke, right! It won't be a problem?

I wouldn't write P.S to tell a joke, but some might.

I've voted to close as primarily opinion based. There is no "wrong" or "right" about this kind of question, just what seems wrong/right to me, based on my own personal logic/style/sense of humor/sense of propriety/other idiosyncratic criteria. "It's wrong, because emails aren't in script!" "No, it's a useful rhetorical device!" Etc. (The other, 5-year-old question would also be closed if asked today.)

@1006a rather than wasting someone's time and energy and putting question on hold, you should answer the question and close it. People will ask this question, now and again. Using your moderator power won't help curious people to refrain from asking in future and you will be wasting their time by putting it on hold.

Please don't change the question or delete its contents. As you correctly pointed out, two users have invested time and effort (Chris the most), so it's a little disrespectful towards them. FIVE users, no mods, voted to put on hold your question because three or more of them believe that there can be no "right" answer to your question. The answers on the older question also confirm this.

If a question is "closed" it definitely cannot receive new answers. Putting "on hold" a question is telling the user, in this case, you, to make it less subjective. The older question you posted also proves that this question has already been asked before. So, go ahead. Vandalise your own content, if you really cared you wouldn't.

@Mari-LouA well this isn't inter-personal section of stackexchange. There are certain rules why you use elements of a given language. I haven't made it more subjective, in fact I have brought to light the discrepancies in answers which lead to opinion of moderators. Last time, I read about P.S. was in the set up where you have after thoughts. So, I was expecting answer where someone would say. Hey, this was the main reason, but these days it can be use like this as well. I guess, when there is no answer, so-called expert divert attention by dismissing it.

You have vandalized the content of your own question, which is against the "rules". Anyway, this link might be helpful: english.stackexchange.com/help/closed-questions Be informed on how things work here.

@Mari-LouA I found this on the link you sent me "primarily opinion-based". That is the reason given to me that answer is opinion based.

Putting a question on hold is so that the asker can adjust it to better fit the site's requirements. If you can edit the question so that there is potentially a definitive answer, it can be re-activated. An example of such a question: "With the advent of electronic communication, is there evidence that the use of literal postscripts is declining?" Probably answerable: "When a message can be easily edited, as in an email, what purpose(s) does a P.S. serve other than letting the author hit send without making an overall edit?"

And getting into opinion-territory: "How is a P.S. likely to be perceived in a business email, as opposed to editing the information into the body of the message?" I posted a message explaining why I had voted to put on hold so that you would have the opportunity to edit your question as soon as possible, not to waste anyone's time.

@1006a everyone have their style of constructing question. I have explain all the stated scenario by you in detail. You are paraphrasing it in your style. Email itself dictates that it is electronic communication, and I have emphasised on word 'relevant' which in fact take care of "postscripts is declining". Tell me something I don't about the question I have asked.

I don't know that language elements are used based on opinion. I thought they have specific rule(s).

I have vandalise my own post because this is increasing on daily basis where questions are dismissed just because moderator thinks so. I will stand my ground on this question for sure.