Moderators
Moderators are Geometry Dash players whose accounts have been granted special tools for monitoring and moderating elements relating to player activity, being introduced in Update 2.0.
Description
Moderators are selected by the game's developer. As of Update 2.11, a moderator can be distinguished by an "M" badge appearing next to their username on both their profile page and comments (excluding leaderboard moderators).
The full (and unofficial) list of current moderators, elder moderators, and former moderators can be viewed here.
Moderator

Moderators are players who have privileges to send unrated levels and suggested difficulties to RobTop, as well as add levels into the "Sent" tab. Moderators additionally have a higher priority when suggesting demon difficulty ratings. Comments left by moderators appear in lighter green text (hex code: #c8ffc8).
Elder Moderator
Elder Moderators are the highest class of Moderators, being introduced in Update 2.11. These players hold additional special responsibilities over regular Moderators. Elder Moderators can delete comments on levels, give users temporary bans from commenting, remove non-featured user levels with under 1000 downloads from the server, and whitelist featured Newgrounds artists. Comments left by Elder Moderators appear in darker green text (hex code: #4bff4b).
Leaderboard Moderator

Leaderboards Moderators, who were first assigned during the latter half of Update 2.11 and officially added in Update 2.2. Are an additional type of moderator who moderate all sorts of Leaderboards, this includes: Top 100, Global Leaderboards and level-specific Leaderboards. Unlike other Moderators, Leaderboard Moderators do not have unique coloured comments.
Trivia
- Initially, Moderators had white text for their comments until a server-side update changed their text to light green on September 17, 2020,
- Prior to update 2.1 the Mod Suggestion button was initially located beneath the Rate button, whilst having an identical appearance.