P.S: I will still HODL BTC until 1 sat is equal to $1mil... 
Of course, seems a bit much from my perspective, but I have already said my piece about that way of framing the matter.
By the way, I do understand that there are some folks who believe it might be better to never sell their BTC and to engage in various kinds of usage of BTC as collateral, and in principle, I don't have too many problem with such ideas, even though hopefully people are considering the extent that they might engage in some services that put their BTC too much at risk in terms of third party risk blah blah blah.. and there may be more prudent practices to sell a bit of BTC.. depending on personal circumstances rather than engaging in some of the bullshit (and possible scams) collateral arrangements.
I'm not in favor of using BTC as collateral for any kind/ type of third-party services because of the risks involved, which in some cases are huge (even if ppl don't realize them).
Well then, I am glad that you were not referring to that kind of thing because there has been a lot of hype about those various kinds of bullshit products, even in the bitcoin space, and it seems to me that one of the aspects about bitcoin is that it was already designed in such a way that it is quite likely to appreciate in value in comparison to other kinds of assets whether we are referring to fiat or possibly various kinds of harder assets that exist.
So, if you establish a decent enough BTC stash, and maybe in 5, 10 or 20 years, 1 BTC will be considered as a sufficient enough stash (even some people may already consider 1 BTC to be a sufficient enough stash).... Anyhow, if your BTC stash is sufficient, then there might not really be much if any problem for a lot of folks to shave off a bit of it here and there along the way, especially if they are running out of cash flow in other kinds of cash that they might choose to liquidate first... but sure, some people might already have sufficient amounts of cashflow and assets that they can draw on to cash out those inferior assets before even touching their BTC stash, and I understand those kinds of motivations if you are having considerations in that direction, condoras.
Neither I'm the type of guy who will hodl BTC just to hold them and make some kind of show-off.
Seems more practical, from my point of view, to manage your stash a bit better, which would include shaving off some.. but I understand that opinions are going to differ in this regard.. and surely, selling less BTC seems to be more justifiable if you continue to have a certain amount of assurance of ongoing fiat cash flow or the value of other assets continue to flow to you which causes you little to no problems in being able to assure whatever standard of living that you expect to carry out currently and in future years.
I trade every day in more than 4 exchanges regularly for the last 3-4 years now, so "selling" and "buying" is my routine and I believe that if you are focused and not impulsive, you will benefit a lot more over time.
These statements seem to contradict or to be in tension with your earlier statements about not selling any BTC until they are equal to $1million to one satoshi.. and sure maybe there are some framing and context issues, but I find some of these assertions to be a wee bit confusing, mostly because they seem to be contradicting one another to some degree.
Anyways, the thing is that I truly believe that they want to restrain BTC in their own playground.
I am not sure. Of course, there would be a combination of considerations that any business such as an exchange would have to go through, and one would be regarding what is profitable and another would be some of the increasing constraints that might come from changes in the regulatory environment and trying to figure out the extent that they are compliant or are able to work with various regulatory constraints that vary based on jurisdictions but also questions regarding how some countries may engage in regulatory overreach - even if some exchanges might be trying to avoid certain jurisdictions (maybe the USA is a BIG one in terms of those kinds of considerations). And, yeah there might be some reputational concerns that exchanges have, too.. because if they deviate too far from certain community expectations, they might experience some backlash from customers, too.
