I disagree. I think such an expectation is naive at best.
There is no way most of us are going to put their birthday on a public forum.
And any experience could be very much understated or overstated.
To restrict someone because they are "....checkboxes in profiles could restrict what is made available (student, college, hobbyist, professional coder, engineer)...." goes against the very idea of a forum.
The only way to know whom to trust is to read their posts and learn who is helpful or not.
i think understanding their background an illicit a little more patience in some cases to help them describe their problem better. in other cases, it may be a lost cause and not worth the effort
I think most forum users will immediately understand a post from a new younger poster. Most often they don't know how to communicate their issue. They probably need more TLC than others. They not only need help with their problem but also how to ask which often entails teaching them what to ask and why.
Personally I post on this forum because it makes me feel good to help others. There is no way to put me in a "category" that will tell how useful my posts are. So it's quite likely you might put me in the carmudgeon category and ignore me, which is fine with me.
BTY what category would you be in.......