Not me.

Why should anyone regret this?

Unrelated, but I have a friend that used to say that having your phone key on a keyserver and having signatures to such key on the same keyserver was a weakness because that reveals your web of trust.

If that is the argument coming up, I want to say the following: anyone believing that has completely missed the point of gpg, key signatures and web of trust.

First: trust level is not how much you trust someone. It is how much you trust that key actually belonging to the person claiming to be the owner.

Second: the web of trust is not about your friends circle. Is about finding a path from a key you trust to a key you are examining. To do the gpg/pgp thing right, you should really acquire as many signatures as possible.

All this is clearly explained in the GNU privacy manual and I really recommend anyone to read it. It's not very long and it's super useful.

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One last thing: I am not regretting uploading my key to a keyserver because the gnu privacy manual has explained me how to handle my keys. In particular, I do not have multiple keys in my name laying around. My old key has been revoked and it clear what key should be used to speak privately with me.

I do for an old key. It revealed my connections and allowed people to construct a network that could have been used against me. Like when I negotiate, if they can see I know XX it may get me not so good terms.

Online, I suggest for opsec to be keeping identities separate. And add some randomization, things that are obviously wrong with some basic googling about you. Demographic details for example