Agree? Disagree?
TKO, yes. 
sub·mis·sion
s?b?miSH?n/
noun
-
1.the action or fact of accepting or yielding to a superior force or to the will or authority of another person.
Tapping = submission.
Its a submission.
U tap to avoid further damage.
Tko is more the ref saving u from harm.
Just like sub attempts that are stopped by ref without a tap should be a tko....not sure if it is tho. 
NO
Sub imo, and sub.
GSP24 - Nope. It's a submission.Yup
What about KO or TKO via sub>?
DanTheWolfman - Agree with OP, I see records the JMMA often shows win/loss/draw then under than 5KO9Sub etc. and SUBS MEAN SUBMISSIONS
Well, what does "Submission" mean? You are using it to mean joint attacks and jokes. They aren't synonyms. I posted the definition above.
boxy - Disagree.^
Tap out or verbal submission to strikes = submission
KO = removed from consciousness
TKO = senses rattled and not intelligently defending
fishyfish - so what do you call it when a fighter chokes the other guy out for the win ?
you can't call it a sub, since the guy didn't submit.
Technical submission. It's not a new term. You should know this son.
Who determines the official result? The organization or the commission?
as much as I needed those 2 fights scored as a TKO/KO for Mulletrons contest, they tapped so it was a sub
Card -KO - Fighter Out
Agree? Disagree?
TKO - Ref decides that fight cannot continue due to strikes and steps in.
Tap/Submit - Fighter decides that he cannot continue due to strikes.
op said should, not is googleophiles
Card -
Agree? Disagree?
Agree - it's folding to strikes, not to a submission hold.
More similar to a TKO than to what the sport knows as subs
By definition they are "submitting" to their opponent.
Just watched voice vs bas rutten, according to him not a manly thing to do lol.
ausgepicht -
sub·mis·sion
s?b?miSH?n/
noun
1.
the action or fact of accepting or yielding to a superior force or to the will or authority of another person.
People are going to gloss over this.