Many of us even though only care about bounty opportunities but knowing about which exchange is bad and untrusted also helps if we deciding on bounty projects to participate in. Any bounty project list on these bad exchanges will receive a red flag from me.
the bounty of the project on p2pb2b or Vindax is all meaningless, like TLS and Kingcasino, take a look!,
these two projects if I see have very potential, but ended sadly, avoid the project from bad exchange