Yep, crop dusting knowledge in a public space without at least tying it to something relevant is a faux pas in my book.

Offering to teach someone something proactively? Sure, go ahead.

Sharing stuff freely when asked and arming someone with the tools to investigate further? Amazing!

Treating a public channel like ye olde facebok wall? Mildly annoying.

> Treating a public channel like ye olde facebok wall? Mildly annoying.

Every team/department/org/whatever should have channels everyone should subscribe to, and channels individuals set up that are optional for everyone. The appropriate way to handle this is for the OP to write a few tips once in a while in the public channel, and if people seem to like it, announce that all future tips will be in that channel.