Most of the terms (around 76%) occur in more than one community, although no innovation is present in all the subreddits in our dataset.
around 24% of innovations tracked occur in just one community -some of these are clearly topic-related, e.g., pkemon in /r/pokemon, while others are more general purpose abbreviations that, in principle, could appear in any community, such as txs (thanks, in /r/Android) or omgz (oh my god/gosh, in /r/subaru).