Fear is for weak hands, they panic and chicken out during a dip cause of the fear of being liquidated which is totally understandable since they lack experience but experienced investor picture every DIP as a huge opportunity to accumulate more Bitcoin regardless of how low it drops so far they're doing the DCA, infact someone who's into the DCA has no business with being scared of the dip cause it's not really affected by volatility. However Bitcoin investment is for those who picture the future, those that are willing to wait for a very longer period before taking some profits of what they've invested over the years, not those who come in with the mindset of making quick gains like day to day traders, if those weak hands acknowledge that Bitcoin investment is not for quick gains then they'll see no reason to panic sale.
The title of this thread is "Buy the Dip and HODL", what OP has shown is a message from 2011 where an anonymous participant is saying that it's just the beginning and small rallies of 10$ to 20$ are nothing compared to what will be seeing in the future. In 2011 price of Bitcoin might be under 1$ or 10$ and those who have bought Bitcoin and kept it for few years have seen the benefit of buying at dip and hodling.
Price of Bitcoin is now 83k$ and we don't know what price of Bitcoin will be after 5 or 10 years from now. There is strong possibility that in year 2030 and 2035 we will be saying that in in 2025 price of Bitcoin was just 83k$ and that was the ideal time to buy the dip and hodl.
Keep Hodling.
Every buy is a DIP for me so far as you have a long hodling plan for your investment in bitcoin. We should forget about those days when the price of bitcoin was so low and affordable such as in 2011 because those days bitcoin hasn't gotten this attention and popularity it has gotten now and not many people also trusted or knew about bitcoin then. Bitcoin is a volatile asset that has the possibility to rise over time that is why we should consider any price we buy as a DIP because it will surely increase in the future, all we need do is have a long-term mindset and make sure we don't sell along the line when our investment is not yet ripe for harvest.
If you buy bitcoin at the price of $83k, imagine what the price will be in 2030 or 2035, so buying now is still a DIP price compared to the price bitcoin will get to in those years to come so the DIP you are waiting for is still now, if the price falls and you have enough money to acquire then you can still buy more but never expect that there is a certain price that it will get to before we can call it a DIP price.