The thing about writing something like an online diary is that, essentially, I am giving you the reader the knife to stab me with on a platter. There is only so much I can be vague about without accidentally implying the truth. That's just a facet of doing anything after all.
So, my one surefire way to combat this dearest reader is to lie. I recommend you do this always. Especially online, especially to people you don't want to know about you. To the people who find evading answers a challenge, you give them an answer. Prepare your lies even. Just try to keep your lies straight. Or confess to something else if your caught. Lie, deny, and live happily with the people you can trust.
It is a bit cowardly, but I don't care about being a coward. There's too many horror stories about people who think they are owed information about you just because you refused them. Be the frosted glass case surrounding your heart.
There is another way to combat the knife to stab me with issue, and that is to do whatever I want anyway. Obviously, I should keep myself private, but I have no reason or want to cater to the most awful prodding pieces of shit out there. Why would I that sounds soul draining. This is my website, for me, by me. Why should I worry about the hypothetical monster I've made up. It is quite literally not my problem.
Here is another pro to having an online diary I suppose: Reflection in a way that is not physical.
I think a lot about my own death. It would be sad for my little ghost or whatever to see my name besmirched by the people who knew me best because they rifled through my shit. But it soothes my own demons when I write here. Besides, I think you could gather all this from my art if you tried hard enough.