[paste] is currently used on 26 questions, and has no guidance.
[cut-copy-paste] is currently used on 386 questions, and has the following guidance:
Questions about cutting, copying, and pasting text. In Vim, "cut" is also called "delete", "copy" is also called "yank", and "paste" is also called "put".
Seems to me like
[cut-copy-paste] is our canonical tag for this, so I've suggested
[paste] be made into a synonym.
If you agree (or if you don't) please vote!