As so often...
...you are quite - and elegantly, si vous me permettez, mademoiselle - right.
With this addition that a common and valid(+ated) assumption of this forum is that one can judge people from their writings - not unerringly, not fully - quite adequately, and sometimes surprisingly deeply, on a personal level, as well. (Eventually, perhaps, as some newbies may be initially misjudged...)
Furthermore, about some there is just more evidence, as regular contributors, one has learned to know on various threads through their postings, so that one can often fairly and rationally conclude that so-and-so can be relied upon to be and mean and think as (s)he says, also if one disagrees. And everyone does have his or her's own unique experiences, needs and shortcomings.
And also: I did not speak lightly, nor without extensive evidence, nor did Parvo and Kim, I feel certain.