Greasemonkey is unnecessary bloat, Facebook runs at a crawl as it is. This is broken design that could be mitigated with improved sharing functionality. Not that it could be ever eliminated, but these tools change functionality to offer better alternatives, imo.
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It could also be argued the "hacker" way to solve this is a greasemonkey script that removes the comments.
Greasemonkey is unnecessary bloat, Facebook runs at a crawl as it is. This is broken design that could be mitigated with improved sharing functionality. Not that it could be ever eliminated, but these tools change functionality to offer better alternatives, imo.