should deletion (key d in normal mode) copy ?

[Lishen1]

I found that default behavior (copy on delete) is very uncomfortably because usually when i delete selection i going to place here content from buffer , but content replaced by deleted selection and i have to use alt+d always that not comfortable

[CptPotato]

You can rebind your keys to accommodate that. i.e. swap delete_selection with delete_selection_noyank, see the keymap docs.

Also if you want to replace the selection with what you have currently yanked, use R.