Yeah I've been using vim with just a custom theme and a fairly vanilla .vimrc for 20 years. I just copy it around with me. These posts always make me feel like I'm missing out.
I use neovim for my development. It has a bunch of plugins to facilitate using it as my primary code editor. I don't particularly enjoy typing things out over and over again (I have RSI) so to me a config that doesn't have things like autocomplete aren't going to be acceptable to me long term. LSP also makes it easier for autocomplete to function with the context of your development environment, which allows me to type even less.
I'm not going to sacrifice my 95% use case for the 5% of time (probably even less) that I am in a situation where I don't have access to my own config. If I am just editing a few lines in a config file on a server, it doesn't really matter that I don't have my config.
With that being said, not everyone wants or needs plugins and their needs are different from mine. Do what serves your needs. I would simply advise anyone to consider if their workflow is serving themselves or not. A lot of people get stuck in the mindset that they need to simplify in order to facilitate easy transitions to situations that just don't come up all that often.
