Compared to more traditional messaging protocols it could seem that way depending on various factors like time zone differences and how often devices can be online.
It seems like in general, 1:1 conversations will require both participants to be online simultaneously to communicate. Group conversations can have any online participant act as a relay for new messages to offline participants, more or less.
Check out their documentation, particularly the article on how the distributed network works. Also the FAQ is massive! I wish I had the time to read about this in more detail right now
Eh. Gotta let them dig the hole long enough to eliminate all doubt, plus pushing back on their nonsense is potentially valuable to third party readers later. Thanks for looking out, though.
So is it willful ignorance on your part then? Or have you some explanation for not paying attention to the myriad avenues of data collection and exploitation for the last fifteen years?
To use a very old example which pales in comparison to things which are possible now, here's a story from 2012 wherein Target's marketing efforts outed a pregnant teenager to her family with targeted coupons. Luckily her family was supportive in this case, however it's not hard to imagine real harm being done if the circumstances were different.
“[...] we found out that as long as a pregnant woman thinks she hasn’t been spied on, she’ll use the coupons. She just assumes that everyone else on her block got the same mailer for diapers and cribs. As long as we don’t spook her, it works.”
So to bring this to a slightly more relevant topic for 2023: are you really okay with mass surveillance being used to uncover and prosecute women who have been forced to travel out of states with abortion bans to seek lifesaving medical care? Just because you don't have to worry about it personally?
This is just one of many, many examples of the abuse of data collection in the modern day. Before you try and discard this post as an alleged strawman (or some shit) I encourage you to actually open your eyes and look, because these entities are not nameless, many of them are household names. Your "spooky bedtime stories" argument is an absolute farce and I honestly would prefer you to be trolling than genuinely this ignorant.
Sorry that I don't have an answer to your direct question, but
It doesn't necessarily need to be at a large scale, because of federation. The technical knowledge needed to admin an instance is a barrier to entry now, but probably can be improved. We could eventually see an ecosystem where your WoW guild (or your college buds, or your found family, or your fantasy football league, or equivalent smaller community) hosts an instance for its members. You can still participate in federated discussions, and the subscriptions of the instance could stay comparatively filtered to what's most important to the users of the instance.
You'll always have bigger generalist instances, but the flexibility you can have with really small and topical ones shouldn't be forgotten about imo, especially as the platforms/technologies mature.
The interoperability of Fediverse platforms is so cool!!! Don't even have to leave the site you're on to contact someone in a completely different style of site. I love to see it.
I would ask whether you realize you're on a linux community, but you referred to a man page as a wiki article so you are clearly lost.
The first paragraph past the link is a summary of the function of the program.
fstrim is used on a mounted filesystem to discard (or "trim") blocks which are not in use by the filesystem. This is useful for solid-state drives (SSDs) and thinly-provisioned storage.