Ok so to summarize: when they are talking to higher-ups, people don't want to make strong claims so they use wordings that make it explicit that this is "only"

Ok so to summarize: when they are talking to higher-ups, people don't want to make strong claims so they use wordings that make it explicit that this is "only" their personal opinion rather than an absolute truth. And they typically do so by using the word 'I'. Which is therefore a good indicator to detect who's the higher-up. I would agree with this, but this all very implicit in the post.