Trashbot emoji reacts
Trashbot emoji reacts are a deprecated Trashbot feature. Trashbot would automatically react with certain emoji to messages that contained keywords related to that emoji. For example, messages containing money-related words such as "expensive," "dollars," or "cents" would be reacted to with the Mr. Krabs emoji.
The keyword/emoji relationships were not made public, although most of them were fairly straightforward (i.e. Messages containing the word "spider" would be reacted to with a spider emoji.) However, certain relationships remained a mystery for a long time, and some keywords were so rarely used that it could take months for them to be discovered.
Emoji reacts were disabled for more serious (witness-related) channels.
The feature was eventually removed by server-wide consensus, due to the fact that it was incredibly annoying. However, the original reacts can still be seen when looking back through old message history.