This is a tricky question. I'm someone who eats pretty darn close to the whole30 every single day, but I am not "on" a whole30. It took a while, but basically, I had to get to the point where I make my own decisions. I own them. I can't say: I don't eat that because Dallas and Melissa say I shouldn't. I say: I don't eat that because I don't want to (because I know it makes me feel like crap afterwards). This was an important distinction for me. Doing a true whole30 requires careful vigilance about minute quantities of ingredients that can feel a little out of balance. Now that I'm post-whole30, I'm willing to continue to be careful and read labels and avoid soy like the plague, for example, but I give a tiny spec of sugar a pass because I know my body can handle that quantity. I give baby red potatoes a pass when they appear on my plate at a restaurant. The way I'm eating just feels more natural and sustainable that way.
Now, you may find post whole30 that you don't want to reintroduce anything ever. But even if you don't, you are now doing meadowlilly's plan, which just so happens to be exactly the same as the whole30. It's your choice, and you can continue to make that choice for as long as you want.
Or another perspective, which I've seen play out on the boards: sometimes when people don't take these choices on as their own, they may do a whole30 or a whole60 or a whole100 or whatever and then once it is "done" the rebel takes over and they go right back to SAD. Not being "on" something means I'm never "done" I just make choices one by one as they present themselves, using my whole30 experiences to guide me.
This thread kicks booty! I laughed out loud more than once. (The "gets mad when sees paleo pancakes marked as Whole30 approved" was my favorite.)
Maybe me and Melissa Joulwan need to make a video called "Sh*t Whole30 girls say."