The phrase "usual disclaimer" means a statement that is commonly used to warn or protect oneself from any responsibility or liability for something that might happen. Full definition
Usual disclaimers apply: Computers measure things differently than people, and none of these really matters. (sbnation.com)
Usual disclaimer of «I haven't tried it» — I think it'd be fine with parm, although I also think you could leave it out entirely and add a couple extra teaspoons of gluten, then up the other spices just a bit to give it that extra depth. (baked-in.com)
Fiscal Polozy usual disclaimer, personal opinions contained herein, some better opinions borrowed from others, none reflect views of my employer, etc etc.. (ello.co)