I received an email and saw on their website that they have a great sign up bonus. It does say no other promos so not worth trying to be referred.
I have been with Blockfi for a few months and they are reputable. In the same category as crypto.com and celsius.network.
Essentially, their goal is to onboard lots of people and loan out your holdings and pay you interest. It has no appearance of being a ponzi scheme and I have been in crypto since 2017 when ponzi schemes were everywhere.
Please note you can not withdraw your funds until after 30 July. They will earn interest until then, however.
If you don't like bitcoin you can fund it with a stable coin like USD tether. Up to you. I believe in the long term value of bitcoin so I am happy to hold and fund with bitcoin.
To celebrate the historic Bitcoin halving event this month, we’re offering a limited-time promotion to earn some extra BTC. Fund your BlockFi Interest Account (BIA) for the first time between May 11 and
May 14 May 16, and you’ll be eligible to receive $100 in BTC on us.
There’s no time to wait. We’ll add $100 in BTC to your July Interest Payment if you make an eligible deposit in a BlockFi Interest Account by
May 14 May 16, 2020 at 23:59:59 UTC.
Here’s how it works:
Sign in to the BlockFi Dashboard.
Make a deposit in your BIA of $200 or more of any cryptocurrency type and hold until July 30, 2020.
It’s that simple. Get $100 in BTC on us for funding your account for the first time.