I want to make an «ask me anything» like option on a WordPress site akin to the Tumblr one or how ASKfm works, in that a reader sends a question via form and one have an option to answer in a regular WordPress post. This is distinct from Stack Overflow like plugins which are better suited for many people answering instead of just the site owner. One thing I would prefer is NOT to have the option of submit anonymous stuff, but login via an existing account, preferably in an external service (like Google).
Are you or you (and a few co-editors maybe) the one who answers? Because then just make a form and cite the text in the post. For the styling it depends on what you use, if a visual builder then make a template, otherwise you may try with acf and give a specific styling through the theme