Having a "diary" is not bad if you really want to keep a record of things that happened in your daily life. But keeping it online? What do you expect?
To brag, get pity, admiration, whatsoever? Now who do you really think you would want to read your chatters - every single person or stranger that would poke their nose into what you have posted? For sure celebrities are well-exposed to it but even they are not too happy about having less or no privacy at all. Just that it's part of their job and they're given no choice. But you?
There are other ways to share your oh-so-important life events, not just to anyone for that matter. Beware of the footprints you leave on the wide web where they could most likely be used against you.