It can be, if the people involved are knowledgeable. In this case and a distressing number of other cases, it's clear the people piping up have no idea what's

It can be, if the people involved are knowledgeable. In this case and a distressing number of other cases, it's clear the people piping up have no idea what's going on (and some aren't even paying attention when reading the initial question). They're imitating what knowledgeable people do to feel like they're contributing.