@eFrysTon has mentioned a couple of times on the xEdit Discord mod authors should make a change to a record's Editor ID/EDID to prevent an intentional ITM from being flagged as ITM in xEdit when cleaning. It would be good to include this in the documentation so mod authors can be pointed to it (or simply come across when reading the xEdit documentation).
Either https://tes5edit.github.io/docs/5-mod-cleaning-and-error-checking.html#s_5-3-1 or https://tes5edit.github.io/docs/5-mod-cleaning-and-error-checking.html#Apendix-A seem like good places to point to, but it might also be better with a new section (appendix) with "tips for mod authors" or similar. Either way, it should preferably have an anchor so the section can be linked to directly.