Be you while you can and don’t let anyone stop you. It is a waste of energy to worry about things you cannot change including stupidity in other people. Live without regrets. One day, if the winds of fortune turn unfavorable in life, you will most value the times you were bold, the times you were true to yourself, and the times you were true for others. You only have one worst day to deal with. For all the rest you can brag to yourself “I’ve seen worse.”
When some punk kid threatens me on a bike trail these days I tell them “do you think you can hit harder than a Jeep Cherokee and Mitsubishi Montero, because I took on both of those but I’m still here and they were total losses.” My real emotional worst low was 3 flat tires in 40F rain at night with a headwind, when a 1:45 ride took over 3 hours. All the other miserables are not really memorable to me specifically because I only allow myself to hold onto the worst in mind. I’ve actually been hit twice badly by cars but by 7 cars in total. Now I’m physically disabled and kinda stuck lying down at home most of the time. Live your life like you could become me. You won’t regret being real to yourself. You will regret the opposite. It is just one bad day at worst.
There are transporter bots that admin configure to run in the background. These are what transport the likes and comments between instance servers. You are connected to one of these instance servers. LW has a large volume of interactions so some instances may limit how often or what is transported by the bots between servers. It is all done with activity hub protocol. Take a minute in a desktop browser to view the page source for Lemmy and you’ll better understand what is involved and how information is passed around. It looks like structured text. This is pretty easy to spot even if you are unfamiliar with code. You’ll likely understand why the message exists about DM not being private too, and maybe understand why blocking works poorly on Lemmy as that is pretty much implied.
If an instance defederates, what that actually means is that the admin is not allowing the automated background bots to carry activities between the two instances. Everything up to that point is already synchronized and does not go away.