commenter
noun
com·ment·er ˈkä-ˌmen-tər
variants or less commonly commentor
plural commenters also commentors
: one who comments
especially : one who leaves a comment on an Internet site, story, page, etc.
… every blogger and commenter and self-anointed pundit, could outperform any robot writer at a fraction of the cost. —
Paul Di Filippo
Many websites which allow users to leave comments … use a system called Captcha to check that the commenter is not a computer programme (or 'bot') leaving spam comments. —
Nick Poyntz
Love words? Need even more definitions?
Merriam-Webster unabridged



