The platforms (Airbnb/VRBO) boost your listing in the first month it is on the market and depending on the views and booking it gets in the first month sets your "ranking" in the algorithm.

A lot of luxury mixed in with older multi families, so I do not trust the algorithms.

They are booking your property based on two things: (1) the quality of the listing (description and especially, photos) and (2) your reviews (if you keep the guest experience matching the listing and price point, you will have good reviews).To increase occupancy, there are many well known techniques: using hotel style price algorithms, offering point of sale extensions of stay, lowering the minimum daily stay during periods unlikely to otherwise book.

The free score you see on credit karma and bankrate.com is the vantage III score which uses a newer algorithm started by credit reporting agencies.

If you send the same message too many times on Airbnb, there is an algorithm in place that will flag your account as a potential spammer so just be careful.

I know that Facebook algorithms, like Google, change constantly. 

@John Barrett, I'm actually with you on this one, but not because it's a sneaky tactic necessarily to charge a fee, but because I think the quality of their product/algorithm is subpar and I hate their pricing model.

Since I've used up about all of my available credit (their algorithm) I've dropped to about 650. 

This is based on an algorithm that looks price per square foot of sold comps  using specific filters.

Steven, I have been working on a rehab cost estimating calculator that is algorithmically based (meaning it does not require very much user knowledge or input to generate a ballpark budget).