Before revision:  We highlight that these processes need to be taken into account to correctly identify the targets of selection and stress that a major  field-wide goal in the future should be to quantify the absolute importance of these mechanisms.
After revision:  We highlight that these processes need to be taken into account to correctly distinguish sites across the genome subject to selective or non-selective forces and stress that a major field-wide goal in the future should be to quantify the absolute importance of these mechanisms.