Guests provide the bulk of a roundtable article, and as a guest, your thoughts will be the central purpose of the piece. Guests should have acceptable grammar and spelling, and should be able to articulate their thoughts in a way that is easy to understand and never unnecessarily negative or hateful.
Moderators do a lot of behind-the-scenes work. Moderators gather guests, send out questions, and format articles. They also write the intro and closing paragraphs of roundtable articles. It’s more time consuming than being a guest, but it’s also more rewarding - moderators get the byline on roundtable articles. Moderators should have excellent grammar and spelling, and should be able to eloquently summarize an episode. They should also have (or be willing to learn) WordPress skills.
Guests have more fun! As a guest, you’ll be expected to have the proper equipment, but other than that, you pretty much just show up and chat TV! If your podcasting interest is more casual, being a guest is perfect for you.
Hosts and cohosts put in the work, but they also reap the reward. As a host, you’ll have a regular spot in the podcast, and you’ll have more creative freedom over the content of the show! If you’re looking to make podcasting a career, or you just have an unbridled passion for your subject, hosting is perfect for you.