Speaking of the peanut butter red flag to go with the "cravings'" chocolate, nothing makes me nope out of an interest check faster than a giant list of generic pairings.
That's great you want to witness a pirate and an astronaut smash genitals, but games kind of require more than basing every single aspect of the game around one player being a repressed deli clerk and the other a meth tripping biker or whatever. How do you possibly build a plot around it that isn't thinner than dollar store toilet paper?
"But Dervs!" You cry, "A good roleplayer can build off of that! We can build a really good story and or hot intense romance just starting with my ninja and your alien princess!"
I admire your enthusiasm, hypothetical interest checker who smashes nouns together and hope they work, but the fact you have 50 pairings that are variations of "Billionaire x Sanitation Worker" tells me you have absolutely no ideas for any of them and expect your partner to either roll with a super improvised story that is a really forced romance sans actual plot or to do the heavy lifting.
That and few times I took the bite and decided to see if this could work, I got dropped for having the audacity of working on an actual character sheet and trying to do some world building so the character would make an ounce of sense. I've learned people are far less interested in even establishing the time period, some locations, and supporting casts than they are hoping that the two characters meet and become each other's entire world while everything else is completely made up on the fly, consistency and logic be damned.
In short, a solid 10 on the pH scale. Basic as fuck.