FWIW I voted for this and think it would be an improvement, but I just wanted to add some numbers here to give a sense of scale: about 2200 accounts (0.088% of all users who’ve made a verifiable observation, if I got that right) have opted out of CID by default, representing about 1.3 m observations (I’m unsure if that’s verifiable or verifiable+casual), or just over 1% of the current total number of verifiable observations. So while it’s annoying for sure, it currently doesn’t affect too many observations, in the grand scheme of things.
Obviously if this is someone who is a prolific observer of the taxa/region in which you focus a lot of attention on it can be pretty vexing, but I think most identifiers could avoid these if they wanted to with a filter on the Identify page.
Is this part of account creation? I just made a new account on the website, then added an observation and didn’t see anything, but maybe I missed it.