IIRC is my way of getting out of citing sources, often because I don’t remember exactly what it was, say if I saw it during a nature show on PBS or a segment on SciShow

Sometimes I don’t remember if it was AP, Reuters or Mother Jones where I got a fact or a take, but it was someplace I could probably trust. So If I remember right…

Curiously, if I don’t trust a source and can’t recall who it was, I’ll attribute it to vicious rumors or some muckraking rag or but it sounds like something FOX News would put out, so take with salt.