This is somehow true. Those who panic before august 1 and sold their bitcoin, have lost their opportunity to profit from their saving. Before that I also have lost that chance by selling half of my bitcoins. I regret it. But what can I do. But half of bitcoins left in my wallet have profit also. So still thankful.
That is the effect of having not enough patience and lack of knowledge with that segwit .For those who keep and believe is the winner and have a free coin which a equals to a free money from bcc. I will only say that in bitcoins no matter what just keep holding and you will be rewarded for it than to trigger yourself in that Dump scenes.
Holding bitcoin is fun, I can attest. But if you hold too tightly, you may actually cost yourself a bit of opportunity.
Bitcoin will go up, generally. But sometimes its goes backward, for apretty long time. If you remember the Great Slide after Gox folded, it went down, slowly, for an eternity. It didnt bounce right back either, it took a while to regain 1000, to where we are today. If you held during those times, you lost ALOT of opportunity. You could have purchased a real world asset with the money, achieved ROI for profit, and repurchased bitcoin, possibly cheaper than what you sold it for.
I say all that to say this; while bitcoin is a wonderful growth/safe haven asset, it is one of many. Look for profit from all spheres, not just crypto. You may miss an opportunity while sitting around 'hodling".