It's hard to see something as not gatekeeping when you think that it's the right thing to do. That's my whole point. It's going to be difficult to give examples

It's hard to see something as not gatekeeping when you think that it's the right thing to do. That's my whole point. It's going to be difficult to give examples of positive gatekeeping that people aren't going to dismiss as "That's not gatekeeping thats".... "just good advice", "just the right way to do it", "knife safety 101". Encouraging someone to do something the right way is pretty close to discouraging them to do it the wrong way. Gatekeeping is a spectrum and the gates move. Everything on one side feels like it's the correct way and on the other the wrong way. Imagine you posted a cooking video to a cooking community. You did everything right but you had a blunt knife and were slipping with the knife and crushing the vegetables some times. You would feel like it's a gatekeeping unfriendly community if the majority of the replies you got were "OMG YOURE GONNA STAB YOURSELF" and "you should stop using that knife till you buy a sharper one" and "go and get yourself a knife sharpener and a honing steel and throw that glass chopping board in the bin and buy a proper wooden one". And yet this is common. It may be "knife safety 101" but I learnt about it working in a kitchen. My parents didn't tell me how to use a knife. They didn't sharpen knives. I know people who use glass chopping boards. People are likely to have grown up all their lives using a knife without ever thinking about looking up on YouTube "how to use a knife properly and safely". I.e. unknown unknowns. I believe that it's important to do things safely and "properly" to get the most flavour/value. Turns out many activities are like that unless you're going to discover everything yourself from first principles. Gatekeeping is seen as something bad because the internet has made communities really discoverable and people entering new communities are finding that there are some mistakes that don't need to be made, they need to learn first, and the people of those communities tell them that. Some of those people are arseholes, and give advise in a very rude way. Since negativity has such a big effect, "Gatekeeping" comes up as a big negative term.