Reaction Tiebreaker Theory

[doipy hooves]

Today I noticed this post with 4 unique reactions, with the 3 mini-previews on the bottom having a order of Wow/Sad/Haha, unrelated to the obvious statistics like names displayed or order of reactions placed. So what determines this order?
https://www.smogon.com/forums/threads/you-have-24-hours-smogoff.3681219/post-8803919

My current theory is that when multiple reactions are tied in score, display priority goes to the user with the oldest join date/lowest user ID (visible in profile URL). For the above example, priority goes to me (203607) -> Total Clefairy (253000) -> Snessy! (516596) -> LordThemberchaud (531138) which matches the respective reactions. So far most posts have lined up with my findings, but feel free to post of any counterexamples.

In the case of ties with >1 score such as 8685847 (8 Like/4 Love/4 Wow), my current assumption is that the reaction group with the oldest user still takes priority since it's the simplest explanation.

So how does this affect the meta? Most of the time it doesn't as these exact scenarios are rare, but this gives veteran reactors such as Total Clefairy an advantage on the new generation in promoting reaction variety. Thanks for your reading.

EDIT: The order can also be seen represented on the top bar when clicking on reactions. This thread has actually proven me wrong a bit so thanks for contributing.

 

[BP]

Use this post as a way to try it out

 

[doipy hooves]

Use this post as a way to try it out

This post was actually very helpful. For further ease you can also refer to the ordering of the reactions at the top in these screenshots.

First off Like is beating Love on my original post, despite Love having Total Clefairy be dominant. This is odd but the next post is where things get more interesting (and I can actually react to it to test).

Colteor's (520k~) Angry should be beating out Haha/Love (530k~) by my theory, but it isn't. Obviously either I'm wrong or this goes deeper than I thought, or both. So what happens to each order if I react? The results are somewhere in the images below but they take up a lot of space.

Here are the orders in text form and the basic effects. From this point on I will be referring to reactions by one letter. Most are self explanatory, but I chose O for LOve.
Base: WLOHA (2x Wow)
Like: WLHAO (Love shifted to end)
Love: OWLHA (Order maintained)
Haha: HWLOA (Order maintained)
Wow: WALOH (Angry shifted to start)
Sad: WHSALO (Haha/Angry shifted to start, new Sad in middle)
Angry:WAHLO (Haha shifted to "start")

It turns out that even adding a redundant reaction may shift the order of the remaining ones. At this point I started thinking this didn't really make a lot of sense and tried Wow again, but got a different order. So in the end I think this is all just random and recalculated whenever you put a reaction.

The difference actually updates live and publicly, as shown from these incognito screenshots before and after. After spamming wows for a bit I could only ever get these two orders when unreacting, so maybe it's not completely random but you can't really determine anything from it. For now I've left it on the Haha/Angry order because the angry emote is rather underused.

tl;dr There is probably no reaction tiebreaker theory. Sorry

EDIT: Actually, behaviour is probably predictable at <=3 reactions.