Sponge on Reddit

What it signals here

upvote context

Used in comments praising someone for being a great listener or knowledge absorber

community use

Found in r/CleaningTips, r/lifehacks, and r/ADHD communities (relating to absorbing information or hyperfocus)

subreddit meaning

In r/mildlyinfuriating, used to call out people who absorb credit for others' work

karma context

Low karma impact; mostly a niche or situational emoji reaction

See it elsewhere