There's some discussion about it here:
https://www.trekbbs.com/threads/so-whats-your-theory-on-the-anomalies.295120/page-8#post-12556405
I know they showed up in other threads as well (even in other forums), but I'm not going to go digging for it.
I think the Iconian fan theories belong in the same bucket as "Discovery was built by the Klingons" theories that were circulating after the very first teaser trailer.