"Not Applicable" is more bytes. Computers and interns are scoring these things, not pilots. I know a check airman who was hired at Delta when he was a new hire FO at his first regional. I asked him how he got to be a check airman so shortly and while still a reserve FO. He said that back in his 141 school he gave stage checks so he checked the box. During his interview an HR person asked him about his check airman experience, and he told her proudly about giving stage checks. To a pilot familiar with part 141 regs he would be a check instructor not a check airman, and to a pilot familiar with 121 regs or ops he would obviously not be a check airman. But HR is keen on different details and the hiring pilots only check your drinking aptitude.

You all might consider yourselves check airmen because you check boxes. If HR asks about your check airman experience, don't be shy. You've checked a lot of boxes in your time. That's a bit far for me, personally. You decide what's too stupid to defend. Keep your competition in mind.