I would think that if forum members are buying BTC for the long run, they likely are not going to be creating too many changes in their plan merely based on BTC price moves that are only within about 10% of (or less than) the 200-week moving average - which 200 WMA is just around $28,200. Sure they may also consider their own costs per BTC, and even consider if they want to make plans regarding how much in profits would their bitcoin need to become in order for them to consider starting to shave off some of their BTC or have they even gotten to that kind of higher stage of shaving off some profits when so many newbie members are likely still in their earlier BTC accumulation stages - which might could well mean that they don't really change anything unless they get to more advanced stages that might involve lessening how much BTC they accumulate when the BTC prices are going up. There should not be any kind of an universal answer... but surely it can take people 1-2 or even more BTC cycles to really get to a place where they believe that they have enough BTC or even more than enough BTC that they can start to shave off some profits or to otherwise change their BTC accumulation strategies in meaningful ways that transitions into more of a maintenance stage.
First rule of bitcoin, you never sell your bitcoin. I don't know about that. Once you get to a certain accumulation level you have way more options regarding how to manage and maintain your BTC holdings. I frequently suggest to only sell small portions of BTC and to expect that the BTC price might never come back down below the price that you sold them.
Selling seems to be problematic when you are either thinking of it as a way to get more bitcoin and/or if you are still in your BTC accumulation phase, then you should consider spend and replace for any times that you do choose to spend (or sell) your bitcoin.
So one of my personal beefs has to do with members promoting trading (which is selling) BTC as if it were a way to accumulate more BTC than what would be possible by using various kinds of ongoing and/or regular buying tactics...or even tactics to increase your income in order that you have more disposable income in which you could choose to sell BTC.
I am also not against anyone doing whatever they like or taking whatever chances that they like, but when they are trying to proclaim that their way is the best without describing some of the potential trade-offs and the risks, then that especially becomes problematic when employing selling tactics in ways in which to attempt to accumulate more BTC.
I heard the first rules of bitcoin differently.. to be something like 1) always talk about bitcoin, 2) never talk about your own bitcoin... but being in a forum like this, we do tend to talk about our own bitcoin, even though we might also attempt to be coy in the ways that we talk about our own bitcoin which are other ways to consider various hypotheticals and/or the situations of friends as talking points.
I remember I have bitcoin bought under 10k and when bull run started I see them at around 22k. Bitcoin later went up and touched 67k. When I sold my bitcoin I was happy that I have got double profit but later I regret selling all my Bitcoins.
Personally, I can never really imagine selling more than a few percentage of my BTC stash at a time, especially in the earlier stages of BTC accumulation, even though it could be profitable to sell high and buy back lower, especially if you are able to figure out some kind of a system to be able to accomplish it without screwing up your overall BTC accumulation mindset.
Once you have a lot more bearings on both the size of your BTC stash and various aspects regarding how many you might need, then it is likely that you should be able to get away with selling certain amounts of your BTC stash at certain price points. but surely when you choose the amount of the BTC that you choose to sell, you have to be prepared for possibilities that the BTC price will continue to go up higher than your sell point and might not come back below your sell point.
I have learned from my previous mistakes and I do agree that there is no need to get excited after seeing 30k. 30k is the price we have seen so many times this year and we are not sure whether Bitcoin can cross 30k this time.
It seems good to always be prepared for either price direction, so how much you choose to be prepared and how well you have your preparations set up in terms of how much BTC that you might buy at certain BTC price dip levels or how much you are just going to buy BTC no matter what is the price, or maybe you have your buys set up in a range and then you don't do anything in another range, but if you have ongoing cashflow coming in, then you should attempt to account for that and even account for how much extra cash coming in would trigger you to have to change some of your already existing ideas (plans) in regards to whether and if so, how you are structuring your buys.