There’s truth to the post you quoted, but much of it is overexaggerated and with lots of spin.
True. However, the attending stats can be found online, and those are not crazily far off. I believe last I checked it was 33-35 vs 32-34 for the middle 50%. This is still very high.
https://provost.northeastern.edu/uds/facts/common-data-set/
Of course, not all full pay students fall into this bucket. NU.in is the program being referenced, and their stats do not count in those numbers. It accounts for about 25% of the total class, and the numbers are not inherently lower, though they do appear to skew slightly that way. Using limited data from self-reported CC posts, it would appear that including NU.in in acceptance rate and test scores, you would get a 25% acceptance rate (rather than 18) and about 1 point lower on the test score ranges for the ACT. It tends to be more full-pay students since you cannot use financial aid for the abroad semester.
https://www.northeastern.edu/nuin/
Bottom of this page: https://www.northeastern.edu/admissions/application-information/deadlines/
This is also not how it works. You apply and either get accepted Fall, NU.in (which after the first semester there is no difference in undergrad experience), or Reject. If you get accepted NU.in, you either accept or go elsewhere, but there is no “rescinding”.
This is very high school dependent. A school where Northeastern is a safety for half the class also likely sends tons of students to Ivies and similar and likely has a history of many going to Northeastern as well.
In the end, yes and no. It’s not as tough as an Ivy, but very few can truly call it a safety these days, and you’re still going to need 31+ ACT (ideally 33+) + high GPA + course rigor to get into Northeastern. You can check out the RD thread from this year to see what type of stats get accepted/rejected below, as well as on Reddit:
http://talk.qa.collegeconfidential.com/northeastern-university/2124140-northeastern-university-2019-rd-p1.html
Note: Picked ACT to standardize, SAT equivalents also apply.