For sure there is nothing wrong having arguments even though sometimes some people can be too entitled to their own opinion without giving a second thought to what others are saying, for those you are referring to that are using their mouth to accumulate we don't have to worry about that and think more about our self and our achievements because we are all responsible for the consequences of whether or not we invest in to Bitcoin, Bitcoin is not begging anyone to invest in it for it to be called Bitcoin.
It is a waste of time to think if people are accumulating bitcoin or not, because it is none of anyone business. Whether invest or accumulate or not it is not anyone's business but the result will always speak. Bitcoin is personal and what you need to focus on is how to accumulate your bitcoin and make a better profit as result and nobody cares about your own result. Their is no need to be worried about others people investment.
In fact, the value of Bitcoin will never stop for anyone, it will continue to improve over time, and if you want to achieve success from Bitcoin investment, you need to deposit as much as possible, that's all. There is nothing that is beyond your ability to understand, the more Bitcoin you deposit and the longer you can hold it, the greater your success will be, you should move forward according to your own plan, discipline and goals without worrying unnecessarily about other people's strategies, because the money is yours, the investment is yours and the success is yours, so investing effectively instead of thinking unnecessarily is the right decision.