Yes and no - I never tried ramming into a wall, but I did wait in the cupboard of our old house one time like Harry Potter to see if my letter would be delivered to me!

I conjecture the next person has switched the salt and sugar around at least once in their life.

Yep, and I still do sometimes
"Added salt to milk instead of sugar once"

I conjecture the next person loves underrated stuff more than overrated stuff.

Sounds like me! Best example I can think of is I like Marvel characters like Elsa Bloodstone and Jack Russell/Werewolf by Night compared to the likes of Iron Man and Black Widow. There's probably several underrated rock bands I could name too

I conjecture the next person prefers animation over live action.

You're right again!! I mean fictional world seems a lot better than the real world

I conjecture the next person's OOC house isn't hufflepuff.

Ooo! Good one...! I remember doing one years ago where I was Ravenclaw (I wasn't that immersed in the fandom back then though). After redoing it years later, it came back as Hufflepuff. Honestly, Hufflepuff suits me better when I think about it

I conjecture the next person likes comics!

I do!! especially the tokyo revengers comic!! But I haven't got any of my own so I have to borrow them from my friend

I conjecture the next person wants to be a broom racer!

Ooo! I've long debated whether or not to be a broom racer or a duellist! I still don't know

I conjecture the next person likes magical beings!

YEP YEP YEP!! Who doesn't

I conjecture the next person's favourite colour is black.

Ooo... It's not a bad colour, but my favourite colour is teal

I conjecture the next person likes glitter!!

“Glitter? Well, it’s fine. Takes forever to clean up though!”

I conjecture that the next person knows what they want to do in their future