Yes there is a  huge limit on number of accounts DO NOT make more than one freebitco account.. No matter how smart you are it is too risky because i cant count how many people come and complain that freebitco banned them and showed them their history with browser fingerprint despite using vpn, AWS, different device, @TheQuinn will still find out ..... eventually,
 
Feast your eyes on these if u want more understanding of how much ive seen people banned for multiaccounting.

https://imgur.com/a/A1GZiLn

even if they dont catch u in months it doesnt mean they arent watching.... their banning system is lenient but present