There is an over accumulation stage mate. This is the stage when you have accumulated beyond your bitcoin target because you have the finance and passion to accumulate extra bitcoin. For example, I have a target to accumulate 6btc and after accumulating this quantity because I still have more time and zeal passion to continue accumulating more, I decided to accumulate 2btc extra to make it a total of 8btc. The extra 2btc has put me in my over accumulation stage because it differs from investor to investor.
I get your point but don't misunderstand my statement, there is the word over accumulation which typically means over collecting or having too much of something thank u need often above what is considered reasonable. So let me ask you, do you think there is a stage where one have too much Bitcoin than they need? Do you think holding too much Bitcoin threatens the safety of our investment? I personally don't think so, I don't think holding too much of Bitcoin to a point that it will be considered not safe so that's why I made that statement.
In Bitcoin investment we can only accumulate past our investment target but I wouldn't refer to it as over accumulation. You're just exceeding your initial goal which is a good problem to have.