(Some have wondered if this has inhibited the tragic vein in modern well-trained singers. That seems to me to confuse cause and effect: we live longer, and take steps based on living longer, because we have -- collectively -- largely adopted a less tragic approach to life. Besides making us rich and healthy, this choice has colored other things, moving the norm from which an individual -- performer or no -- is likely to start.)
But no system can -- or would wish to -- hide the fact that the stage is an essentially dangerous, precarious place. Like a prophet or tyrant of old, the performer is the focus of mass attention, and is in turn subject to its often-resentful whims. (One remembers how many of those prophets and tyrants ended.) This is the raw dramatic energy of opera performance: tragedy channels it into awful terrors for the characters, comedy into laughter at their folly. So each night these fictional constructs pay for their performers' prominence, freeing us in the audience to marvel at the athletic, mimetic, and other skills well-displayed. But if something goes wrong... And even when it doesn't, surely some must wonder if the substitution's something that can be carried off indefinitely, or if the real person will eventually have to pay...
Some performers live tragic lives, others are clowns (amusing or detestable), and very many live straightforwardly while off the job. Most, I think, prefer the latter -- as would most of us. (Others take part in celebrity, that satyr play-cum-romance that's the essence of popular culture, but that's tricky -- and not an aspect that shows much while in the high-cultural repertory of staged opera. For TV and concerts and miscellaneous appearances, yes.)
Blogging, too, is perilous -- hardly as much, but in much the same way, though many further deflect attention with a pseudonym. And while most don't necessarily read blogs for the dramatic one-before-many aspect, it is there, even sans applause, booing, or even fan/hate mail.
If one has even blogged himself towards death (though he's still around at the moment), that shows an outer limit to dedication -- and its possible cost. It, too, lets in that damned demanding, troublesome thing: the public eye.
So when a favorite blogger -- only thinly pseudonymous and, at the same time, a nearly-famous soprano -- goes on hiatus feeling "overexposed", shouldn't all bloggers sympathize? Even if their attention fed the performer-side aspect of the condition in the first place, and even if writing about it may feed it all even more.
(Another soprano offers her thoughts on blogging here.)