Banned
A while ago, I got banned from envs.net, a pubnix server that I use to host this website of mine. Actually, this was not the first time, it also happened the first time I became a member of envs.net. Why did I got banned? I was too stupid to try logging in repititively. I could've just asked for help when I was having trouble, but I'm the kind of person who don't like bothering others.
The first time I got banned was when I was trying to add my e-mail account to Thunderbird. I was not sure what hostname I should put in the configurations, so I ended up trying every hostname I could think of, resulting in a repetitive attempt to login that eventually got me IP-banned. I contacted creme, the admin and owner of envs.net, and thankfully got the issue of my ban resolved.
Recently, I tried logging in to envs.net's SSH server from an adroid device via termux. My SSH key was generated from my PGP key with an Authentication usage flag. I couldn't figure out how to correctly configure my android device to use my PGP key as an SSH key, so again, I ended up with a repetitive login attempt to envs.net. It resulted in a ban, but I didn't contact creme this time. I figured that they might be using fail2ban for this and looked up for a public envs.net repository that might be hosting their configuration files, and to my guess, they are actually using fail2ban. I looked through the repository and was assured that bans are eventually lifted after a certain amount of time given that you don't try to abuse their servers by repetitively pinging or connecting to their servers.
What did I learn from these experiences? To save myself from annoyance and trouble by asking for help when needed.