That being said or That said

I'd say That being said roughly equals (Now) after this has been said or (Now) after I've said this

This having been mentioned ...
Having this mentioned ...
Taking this into consideration ... (not quite, but close enough, and easier to understand)
Now that I've mentioned this ...

That said,
That being said,

mean

Nevertheless,
Nonetheless,
Even so,

So it's not a complete sentence. It expands into a subordinate clause

Even though I may have just said that, [contrasting thought]

or

In spite of my having said that, [contrasting thought]

or

I ackn

Yes, CJ is right:
I should've added STILL ...
to my translations ...

It's not a complete sentence but a participle construction used as an adverbial qualifier, just like "Knowing this" or "All things considered".

In my opinion, it is superfluous filler to make one sound more important. That being said, I would recommend not using the phrase at all.

While we're on the subject, at this point in time, it is a very good question. However, it is what it is, and I'm very glad you asked that.

Not all filler is superfluous. The timber and rhythm of what is said or written can be every bit as important as what is said.

Introducing a contradictory thought in such a way to highlight you observe the contrast between subjects can be quite useful. Not everyone has to write like Hemmingway. Sure, being overly wordy can make writing look cheap and contrived, but likewise an underst

contrary to the previous remark

I absolutely abhore all of these expressions, "That being said" or "That said" and the other, "Having said that." No need for them. Why not simply close the previous sentence and begin another?

I abhore this expression so much that I would avoid talking with anyone who used this in conversation.