I have put together this topic for new users so they know what everything we oldies say on the forum means.
OP: Original Poster
Thread: An original post
Reply: A post to a topic, but not the original post
Flag: Report inappropriate posts
The Flag Pop-up Screen
DM: Direct Message, start a private discussion between two or more members
Staff: Official Flying Development Studio team members. They can be seen with blue tags in-game or the “Staff” tag next to their username.
Mod/Moderator: Users on the forum who keep or forum nice and clean and tidy. You can identify them by the word ‘Moderator’ next to their username, or the purple tags you see in-game.
Suspension: Disciplinary act via Moderator or Staff restricting account access to the forum.
Category: This is how posts are organized. There is #general, #real-world-aviation, #features, #support, #atc, #tutorials, #live, #real-world-aviation:spotting, #support:francais #support:espanol, #tutorials:flight #tutorials:atc, #live:events, and #live:va. They all have a pinned topic (see below) in them to explain what the purpose of them is, and what trust level is required to post in said category.
Closed/Close: This is a permission that only the moderators have (see above). It locks the topic so that new replies are no longer allowed from the general forum. Moderators can still post in closed topics.
Pin/Pinning: To have the topic display at the top of the list. If it is just pinned, then it will only show at the top of the category (see above) that it is in. If it is pinned globally, then it will show at the top of it’s category and the home page (community.infiniteflight.com).
Regular: A special Trust Level (see above) for the most active and helpful people on this forum. They have access to a special category called the Lounge, where they can talk about whatever they want, and they get text next to their name saying ‘Regular’. They can also move topics between categories (see above).
VA: Virtual Airline
IFVARB: Infinite Flight Virtual Airline Regulatory Board. The organization responsible for certification and regulation of Virtual Airlines. Administrative members have the “IFVARB Admin” tag next to their username.
Wiki: A post that can be edited by Regulars (see above). You cannot make your own topic a Wiki (unless you are a Regular), you must ask a Moderator (see above) to do it for you.
Examples of a Wiki: this post and the community built device list.