Buying aggressively depends on an investor choice , buying beyond your capacity just to meetup can be considered as buying aggressive.
Buying beyond your capacity just to meet up means that you are gambling because you are overdoing it, and it will affect you when an emergency occur. Such investor will always go back to sell his bitcoin because he bought beyond the capacity of his discretionary income. Making it an unethic way of buying aggressively. You can buy aggressively when you have the money to do so, you don't force yourself to buy aggressively when you don't have the money to do so.
Aggressive buying can be risky individually because every investor have their different ways of planning before buying, we can’t just judge in term of aggressive buying being so risky. Aggressive buying can work for Mr A meanwhile Mr B is not getting it right, basically because Mr A will settle every necessary needs and set aside every funds to back up the investment before going ahead to buy while Mr B can decide to skip the planning process just to meetup and buy with everything.
Your cash inflow, discretionary income and responsibilities together with the size of your emergency funds is what should be put into consideration before buying aggressive. Mr A responsibility might be smaller to that of Mr B, and that will determine how much he will put into bitcoin weekly or monthly using DCA.
Most times, whenever there’s a decline we investors consider the price fall as an opportunity to buy and hold definitely it’s the right time to accumulate but, accumulating should not go beyond our discretionary income as mistakes can happen during times like this. Aggressive buying can be practice buy anyone but all depends on the available funds for accumulating.
Yea of course, you can buy aggressively during the dip and that is if you are prepared for it, but as for me I buy aggressively at any price level just like the way I DCA. I only increase the money that I use for DCA to accumulate aggressively within the period of time that I have the money to do so.