Bitcoin investment is a safe one and we should all take it serious, when one one has accumulated enough Bitcoin he or she must not start selling immediately, one could decide to make a history with Bitcoin, I heard of a man that inherited good number of Bitcoin from his late father who he thought had nothing, if you have accumulated enough and you are comfortable and doing fine I will advise you keep holding because as time goes on so will Bitcoin grow bigger and better.
Don't demonize selling of Bitcoin especially for an investor that have been accumulating for years and would have surpassed his target. A point would come when he might need to pull out some of the funds to also enjoy the fruit of his investment but such withdrawal should be organized in a way that it does not hurt the asset so badly or a way he may run out of Bitcoin. Selling a little percentage of our accumulated Bitcoin and not the entire portfolio and holding for many years to realize the full potential, is not something I think is bad. What is bad is selling recklessly without any future plans, like some people do at the sight of profit. However, I'm not encouraging to sell their coins, instead I'm just saying that selling Bitcoin at the right time and right way is not a crime.
Paying for goods and services via Bitcoin is also part of selling Bitcoin and trust me, this should be encourage because they form part of the things Bitcoin was designed to accomplish. The more businesses accept Bitcoin and people willing to do trades in Bitcoin, the better for the entire Bitcoin ecosystem.