I’ve never gotten so many replies on a thread before. It’s sad I can’t rust that this person is serious or is in anyway wanting to help anyone learn at all.
All it takes is a few people who cannot agree, and the thread starts to get lots of replies
I'll be curious to know what gender your chick turns out to be, in a few weeks or months when it's obvious. At that point, we'll at least know the truth about that particular chick's gender!
And for the record: I've seen male chicks with shorter tails, and female chicks with shorter tails, and both genders with matching tail lengths (short or long). Different breeds, fast or slow feathering (either can occur in either gender), and various other factors can all affect it. So I ignore tail length when guessing chicken gender, except for mature longtail males where it is several feet long and dragging on the ground. For those, I do grant that "long tail" is proof of gender.