Just about every forum I've been on has a "show us your gear" type of thread. This ranges from motorbikes, camping stoves, 3D printers, boolit casting and reloading, computers, leatherwork etc. etc.
You will (almost) always get some who make it an ego trip (my stuff is dearer/better than yours) - funnily enough, the only one where I haven't run into that is on a hunting forum where everyone is genuinely interested in what firearms others have but everyone accepts them for what they are (egos get shot down pretty quick on there
) - but most, I believe, are just happy to share what they have/use, plus it can often give others ideas about how to do things. I enjoy looking at other folks setups on here, there are some cool rigs out there.
