Are there bitcoin devs which where detained in recent years? I think it's not dangerous yet for devs, but obv could change.
Discussion
Probably not. Unknown protocol mainly.
Relays are more critical part of the infrastructure
Not bitcoin protocol devs per se but Samourai Wallet developers #Keonne #Rodriguez and #William #Lonergan #Hill are still held hostage by the US government.
Not a Bitcoin dev (as far as I know) but Tornado Cash developer #Alexey #Pertsev got 5 years in prison for his involvement with the project.