Stellar seems to be over-saturated now. It got millions of users in a time span of 20 days. That's quite amazing.
Well if you give 18$ of bitcoin is normal that 653,852 users register in 20 days... since they are not giving such quantity almost nobody is openning an account.
it's look like many who signed up just to take the advantage,
they got the coins, then sell.
rarely opened his stellar account, if there is no longer a giveaway.
stellar has very good system and very easy to transact, so flexible