Yup, I always reply to comments
It always gives me a warm fuzzy feeling when people decide to take the time to leave a comment under my episodes, so I always make sure to show my appreciation <3 the only exception would be times where I don't know what to say right away besides leaving an emoji, so I decide to wait until I get a better idea... and then proceed to forget about it for a whole month, at which point replying with just a ":D" feels incredibly awkward
in those cases, I make sure to at least leave a like to the comment 