These can be convenient if you are only entering text manually. But remapping regular -- albeit rare -- text sequences can have unexpected results when pasting copied content into insert mode in a terminal window. I've been bitten by this a couple times when pasting base64-encoded data.
This has caught me as well, but it can be avoided by using `:set paste!` to toggle paste mode before pasting. This isn't something I need to worry about often enough but you can map that command if pasting external content is something you do often.
