[quote=@DeadbeatWalking]"I want you to pay attention to all of the detailed nuances and bits of history put into a character I've created, who will ostensibly be the main character. You can play whoever, I don't really care, any anime character will do."[/quote]

This is what I interpret when I see "CanonxOC" 1x1 ideas. Most everyone wants to play as an OC. We want to be able to explore our own ideas [i]with[/i] you rather than [i]for[/i] you. We want to create a story all [i]our[/i] (as in, the two of us) own where we can both explore the unexplored in an established world. It takes discipline (not creativity) to play in these kinds of settings. The Canon player has to sacrifice their own creativity to adhere to the strict idea of the decided canon character. CanonxOC writing, in my opinion, should stick to the realm of fandoms. The entire idea of RPing is to play characters you create, not already-created characters. 

If you're not willing to play a canon character, yourself, you shouldn't expect others to do so. If the only option is "the one coming to me is the one that's going to play canon" without considering that the other probably wants to play their own OC, then that's telling the other RPer that their own sense of creativity and world-building isn't welcome or encouraged. I've only been able to handle looking through the 1x1 section for a maximum of 20 minutes, quickly becoming discouraged with the requirements for smut, specific pairings, and no solid story plots or even ideas.

I'd also like to share that, for me, a 1x1 is where both RPers are essentially Co-GMs, in that they play equal parts in building the story and characters (both NPC and PC). They both have the responsibility of pushing the plot forward for the other. I've seen so many complaints about people from 1x1's where they felt their partner was always piggy-backing their own posts and never trying to contribute to the world/plot themselves.
These are simply points to consider. I haven't looked over your interest check so I have no idea what is in them or what they look like or what you actually expect of them. These are merely my opinions and observations. 

I'd also like to point out that the only negativity in this thread is merely perceived as there is no real negativity going on in this thread other than "give me advice" which is always going to be "I point out the flaws I see." Nothing in this thread has been "harsh," "mean," or "unreasonable." I won't say what one perceives to be "wrong," but assuming tone over text is neither constructive nor beneficial to those involved. When I become particularly jaded and begin to martyr myself, I usually take a step back and revisit the topic after some self-reflection before getting defensive and putting myself in an even greater compromised emotional state.