"Coming from Wattpad you need to spend a year getting used to the ao3 culture before you post"

This is a take I've seen largely about on tiktok. I don't understand why people seem to feel this so strongly? What's your take on it?

They also straight up claim all people who write on Wattpad are bad authors.

I myself haven't read fanfic in years, and I just now started posting. I post on Ao3, Wattpad, and Tumblr. (And whatever site I could see it fit on) However, I do often find myself feeling bad, for what if I'm not well enough versed in the "ao3 community" to post there?

I wouldn't say I "come from wattpad" as I haven't used that app in years, and just now picked it up again in hopes of spreading my work best