Whether or not Bitcoin is halal has been a point of contention for many Muslims, as well as several Islamic banks and financial authorities in recent years.
This has left many Muslims worried about investing in cryptocurrencies—particularly during times of extreme growth—since they couldn't be sure whether the appreciation of their investment would be considered haram (forbidden) or halal (permissible) under Islamic law.
Well, the good thing about Bitcoin is that it's decentralized. No single individual, Sect, religion or country can control it. Again, whether a group of people think Bitcoin is good or bad from a religious point of view is immaterial. What about situations where Moslems have thought alcohol is haram but they also enjoy proceeds of tax from alcohol manufacturing companies in form of good roads, hospitals, social infrastructure and so on? I think religion shouldn't be a point of consideration while dealing with Bitcoin. Perhaps those who make that allegation still think Bitcoin is gambling. Otherwise, their condemnation doesn't hold waters.