I've had to go through your appeal multiple times because I just couldn't find it comprehensible that an official warning would be issued for something as stupid as this. This could have been easily resolved with a quick chat on TeamSpeak, Discord, or even in-game. During my time as SA and HA (LT in general), we would never do something like this - Official warnings would be issued to staff who we have evidence of misusing their powers, being racist, affecting people's experience to a large degree, and stuff as such. You've got no reason to be upset because You've obviously haven't done anything serious or problematic to the extent where you had to be dealt with in such an ignorant and thoughtless way.
There is obviously a huge problem (if not more) within the highest ranks of the community that needs to be dealt with accordingly because at this point everything is just spiralling out of control. If the LT seriously don't reconsider their decision about this, then you should seriously rethink whether or not you should even bother wasting your precious time working for such people, because if this appeal gets denied, it's just an obvious sign as to how much they "appreciate" or "value" your time, presence, and hard work within the community.
All the best man, hope everything goes just right.