Most of the people in bitcointalk are holding their bitcoins and waiting for increase the price. otherwise only 30% people are using their bitcoins in the investment.
That's not true.
The truth is most people are posting here they are holding but in reality they're not.
I guess 50% of the people who post are really holding their bitcoins because they know that the halving is near and those people who knew what halving is are the one who is waiting for the price increase.
Some are holding it yes. But there is good percentage of people here also that are trading in altcoin and bitcoins every week or days. I guess that is kind of good also. Profiting through small increase.
Holding is done by most of the users, also it's the right time to hold than getting involved into anything else. Some are following altcoin trading strategy in which people use altcoin trading and invest those profit into bitcoin.