The main cause for being inactive there is there's no moderation in that area of the forum after Benson Samuel left his authority. I've had been watching that section but nothing much caught my interest to post there. Trust me, you can't run a complete section/part of a forum with just 18-20 members making good posts there. I've not seen good amount of engagement between people there may be because as sardasa said, they might be scared of being trapped by officials just because Gov has the power to get us barred from using these services and even BTC. After their bullshit bill about banning cryptocurrencies in India, I believe people are trying to maintain a gap from crypto for some time till a final decision arrives.