Will I get in? And if I do, will I get merit aid?

There are plenty of candidates that got perfect sats(superscored or not), and wrote way better essays than me.
They did not visit (the certain people who I know).
They were rejected.

I didn’t have much to write so I won’t go into it but I have within average range RPI sat scores and my gpa is lower than average.
I visited multiple times.
I was accepted.

It’s hard to discuss this with you because you seem quite angry.
The only point I’ll leave you with is this, I think your message,
‘don’t bother visiting, it won’t help’
is worse than my message,
‘The common data set says they the level of the applicant’s interest is important for acceptance, therefore try to visit’.
If you don’t know for a fact that RPI doesn’t care about visits or other forms of demonstrated interest, I don’t believe you should be directing people contrary to the Common Data Set.