Forums?

[Enkidoh]

Unfortunately, this is SE's forum so they can decide what is off-topic and what isn't, and they must have regarded a fanfiction post as "not a lore topic". Usually posts/threads being deleted without any explanation are a result of someone reporting the thread/post (by clicking the yellow triangle in the bottom left corner of each post) as off-topic and a moderator/GM acting accordingly. The GMs act according to their information given so they are not to blame for this. Sadly there isn't really anything that can be done about it I'm afraid as it's part of the terms of service of the forum that posts have to adhere to each section's purpose and that SE do reserve the right to delete or lock any topic they deem unrelated to it.

Hence why it's better to post fanfiction on a fan site that is better suited to such things - Fanfiction.net is the big one, but there is also the FFXIV Hydaelyn Roleplayers community that has ongoing RP stories.

Either way, please don't get discouraged! FFXIV is an amazing game and although the forum community is actually very good, the official forums are probably not the best to outright post actual fanfics of your adventures, but don't give up! Look beyond the official forum and you should find a place to post your journey!

Most importantly, welcome to Eorzea!