Yup, but the point is if you do have them then that's rather more specific, the post that introduced it to this thread mentioned both and it does seem (from a quick google) that using both is common.
Like a bingo fan with an 88 shirt or something is obvs a different meaning... but "14 words" or 14/88 etc.. nope:
https://en.wikipedia.org/wiki/Fourteen_Words
That is way more specific than an OK symbol, in most situations, someone making an OK symbol isn't sufficient to draw any conclusions about white supremacy beliefs. In fact by default, it's a complete nothing burger...
Put it into a context like say a UKIP politician posing for a photo or say a group of bikers and it's still not necessarily implying anything.
On the other hand if you, being aware of the relevance, saw some bikers with tattoos saying 14/88, 14 words etc. or even just "14" or a UKIP politician started making references to "14 words" that's waaay more specific than a mere OK gesture.
Even just a random person not in any specific context - you spot someone while on holiday at Disney land in the US with a tattoo with 14/88 on it or 14 words etc.. that is clearly more "sus" than seeing that same person sans tattoo making an OK sign in a photo. Even just a tattoo with "14" in it is arguably more suspicious, though does have some more ambiguity to it (vs "14 words" or 14/88).
Sure, if they have 1488 or 14/88 or 14:88 tattooed somewhere prominent, then that's more specific than the OK gesture, not least because it's a permanent fixture on their body.
But by your own admission, until today you didn't appreciate the relevance of it. You would have walked past the guy at Disneyland without a second thought. Similarly, if he had 14 on one arm and 88 on the other, and you only saw one arm, you couldn't be sure of the meaning — unless he also had a swastika on his face or something.