Guys I've found some slack group and they are preparing petition for bitfinex, you can find them here -
bitpetition.herokuapp.comWe, the undersigned customers as the main creditors of the cryptocurrency trading platform bitfinex.com, demand to immediately provide all the information about the state of affairs on the exchange.
Also, we strongly expect bitfinex.com to present the confirmation of the damage, and the conditions and timetable for the return of customer funds. We require that this process and all the actions of the platform were open and transparent.
We are willing to contribute in any possible way to recover the funds and hope for the best resolution for all parties. However, in case of failure to meet these demands, we will file a class action lawsuit against bitfinex.com.
Sounds reasonable to me