1. Why do most people anticipate for the bull market when they clearly encourage HODL ?.
buying the dip during the bear... is common sense. and then hoard when the bull begins until the price moves to a new ATH of profit to then sell at a nice profit is also common sense
if you are buying high selling low. you are losing. so buy low, sell high
2. What happens when majority of the bitcoin holders sells a larger portion of their bitcoin during this bull market?.
when prices reach new highs and lots of sellers sell, it slows down the speed to super highs. and then corrects and starts to bring the price down
(there was a reason bitcoin stopped at $70k in 2021)
3. What happens when only few chooses to sell little portion of their bitcoin ?.
not very much % of coins in circulation are the coins on exchange orders. you would be surprised how little the market orderbook represents the total circulation
4. And lastly, how will question 2 and 3 reflect on the market ?.
trying to guess markets based on holders is a flawed methodology(not much circulation is in exchanges). what you should look into is how many people are willing to buy at prices X or Y. if no one on planet wants to buy bitcoin at $100k .. bitcoin wont reach $100k no matter how much or little units of btc is offered
looking at the world efficiency scale of mining:
some countries can mine for $20k meaning profit to mine and sell instantly
some countries can mine for $150k meaning no profit to mine.. so cheaper to just market buy and hold
if there are countries where mining can cost upto $150k then they would be the parts of the world willing to pay upto ~$145k in a high demand scenario