So, as of right now, the Order Limit only removes your gig from the search page, while still keeping your page live and accessible from any link, including your own advertising campaigns, Google, bookmarks, word of mouth, etc.
So, even if you have set yourself an Order Limit for mental health, anyone with the link can still place an order. Have a super successful advertising campaign and get hundreds of orders at once? Get to work, I guess. Put it another way: the more popular your gig is, and the more word-of-mouth it receives, the more likely you are to end up overbooked and overworked, regardless of your order limit.
I think Order Limits should do what they say on the package: limit orders. Keep the gig in the search bar so that people can bookmark/save them, but grey out the purchase buttons. I’d even be okay with allowing potential buyers to contact me while I’m overbooked to discuss a possible order, as long as they can’t randomly place orders themselves.