Yknow, regardless of who or what Lidl is behind the screen, accusing it of being a tranny is funny because it implies that if Lidl is somehow a woman, he/she/they/it is so bad at it that it's up for debate. Trying to insist Lidl is a woman here of all places is beating a dead horse, perhaps a little suspicious considering this is supposed to be a thread making fun of Lidl and examining the strangeness of posts made by the account. But, moving on.
Here's my honest to god assessment:
There are a number of telltale indications that tend to be missed by people who aren't looking for them. This isn't a magical rule of thumb but it's something to chew on.
1. Women will almost always relate a situation back to their own experiences, and speak from a self perspective. They will use a lot of "I, Me, My..." statements because women see the world defined by their own experiences. You don't believe that? Go to Beauty Parlour, go read journalism written by women. Once you've discovered this, the amount of times you will catch this happening will set off your alarm bells.
2. Because women relate everything to personal experience, they unknowingly butcher their opsec in an attempt to seem relatable. They may not be egregious slip-ups but they're significant. There's a reason why the female user base of KF was disproportionately more effected by the 2019 leaks, and a majority of the female users left or were later effected by information in the database leaks because they didn't bother to use dummy emails or usernames that couldn't be traced back to them. If you go back and look at just how many of the users who dropped off after that were women, it'll make sense.
3. The patterns of behavior Lidl shows presently have also been observed with men pretending to be women, trannies, and their ilk. It isn't just a one-off thing or even a set of coincidences. There are a lot of similarities to Spooky Bones' larp, Blaine, other noteworthy trannies that love getting their hands dirty in gayops and this reeks of extremely homosexual poo-smearing shenanigans.
tl;dr it isn't just people trying to be funny, there's good reason for people to be suspicious.