>Thx. My vote would be something multilanguage tools as forum and "database query /abstraction" or "protocols" as category.
>If oData, JSON, (n)Hibernate or other multilanguage ORM fit, you nailed it ;-)

So, a forum such as "Database query & Abstraction" is probably something along the lines you would see.

Categories could be, at least, oData, JSON, (n)Hibernate, GraphQL.

Is that how you would see it?

If yes, experience with generic forums did not work very well in the past. Specific forum for each of those would be better, such as a forum for oData, JSON, (n)Hibernate, GraphQL. Generic does not attract users nor recognition. But, a forum which is defined such as PostgreSQL, AngularJS, Atlassian and Go, such as the new ones recently created, this is more attractive and it helps in its recognition. Most forums on the Internet only one one list with no structural content. When we define such as a forum here, it allows evolution of the content in that forum, among many things.