I thought it sounded like a nice gesture of trying to be helpful and making a small connection with their coworkers. One message a day is hardly "a bunch of noise". Even though you say you wouldn't have said anything at the company, you said something here, and that has a similar chilling effect on other people who might have been inspired by the OP to share their tips and tricks with their coworkers.

Sorry for the "personal attack" but my point stands, you may not think of yourself as a jerk, but I saw your comment and thought "this guy imagining himself being annoyed at a coworker for a daily message with a helpful tip might be more of a jerk than he realizes". As a jerk myself I judged myself qualified to make that assessment and commented accordingly.

You can mute the channel. Why would you want your teammates to communicate less ?

The post writer is also a person that you attacked for no reason even tho he's not your coworker.