If you enjoy something someone has written, please, please, please comment on it.

Upon my return to my creative home and creative communities, I've already heard stories of feedback motivating a creative to continue.

Even if it was just one part you liked, talk about that part as much as the parts you didn't enjoy, if not more.

One writer I know had a mental block removed when receiving several rejection letters. They all contained some positive notes on the work sent out, and it has given the writer a new lease of life with their writing.

Leave comments, they're far more valuable than the time it takes to write them.