The Rhinocentaurs had long felt that they were forgotten, which was not necessarily a bad thing. At least they didn't face insane torture or death, which made it easier for them to wait for their rescue. During this time, they spent more or less every waking minute perusing the groupchat and its various channels, becoming incredibly active, allowing them to stay up to date with all the latest information.
It wasn't as if they had anything better to do anyway. It was a bitter sweet experience, for on one hand they were saved from eternal boredom, but on the other hand they had to read about others who were out and about, living their lives. At least they developed some renown during this time.