Aggressive approach may sometimes bad if you don't know what you are doing but there are times that its good to execute this especially if our knowledge is enough and you have confident that there's something good will happen on your bitcoin investment in long period of time.
Like I said agresive approach is not bad expecially if you are capable of it. And there is no special skill or knowledge required what really matters is where you get you source of income from. You may not be well knowledgeable about bitcoin but provided you have a higher paying job that can be able for you to increase your investment strategy, you are good to go. Let me say a person who receive $1300 as a salary may be investing $50 on DCA weekly or $100 depending on his programming. He may as well increase it to $300 weekly if he has a higher paying job of $4000 so it may seam to be an aggressive investment but it's not a bad one because he is capable to invest and have enough in his discretionary or reserved and floats. When it can be addressed as a bad aggressive Investment is when he is aiming $1300 and investing $200 weekly.
Investment are made according someone capacity to accept risk and lost, anyone who investing around $200 weekly is depending on their level of risk and not about what they are earning per months.
Before you are called a HODLer, it is assumed that you are already a rist taker who eventually keep investing and HODLing for a long term without thinking of either bearish and bull market. So Increasing your level of weekly investment by $200 surely depends on your level income or salary and there is no doubt about it.
Let just take for example as you had already explained above, someone earning 1300$ per month and aiming at investing $200 per week, this implies that 200$ x 4 (4 weeks as 1 month) is equal to $800 and he is now left with $500, to me there is nothing wrong with this and I don't see it as aggressive approach because since the balance can foot his bill or sustain him while the next salaries comes and what we must understand is that the money his is using for DCA is not a wasted resources and can be easily gotten back if he wants provided that bitcoin prices is on positive side. What I easily sees as aggressive investment is when someone receives salaries and wanting to put all into DCA and later run began to dip hands into investment for his upkeep and as a reserved funds.
Agresive Investment is not only putting all your investment like as I explained above if you received $1300 and you invest $200 each every week making a total of $800 per month left with $500 that is an agresive Investment and surly the person is over doing it. because your bitcoin Investment should be don in a manner that you will over do it. It will definitely affect you or Put you in a tight corner. If you Invest $800 on bitcoin how much will you use for feeding and running family expenses? Or how much will you set aside for emergency and reserved? Surely if you over invest in Bitcoin your available amount you have distributed in various dimensions will be used and it may still affect your bitcoin HODLing. Though it depends on you and how you can be able to manage your family. If its you alone you can cope but if it's a large family I doubt if you can manage. The point of the matter is that don't over invest what you can not afford to lose that will make you to sell you bitcoin HODLing down the road because of not having a discretionary fund to back you up.