That's an interesting statute. The problem is it can be interpreted in many ways. Your interpretation is how some may see it, however there are others as well.

For instance:

> by a natural person in the course of a purely personal or household activity

First off, this isn't purely personal nor household activity. I serve others, not myself.

> and thus with no connection to a professional or commercial activity.

If the goal of the community is to help people develop professional skills (writing, for instance), couldn't that have a connection to professional activity? Also, I use this website as an example on my resume to bolster my own professional competence as a coder. That could qualify.

As always, laws are words that generally end up with the best paid lawyer's interpretations winning in court. It's a roll of the dice, that statute is not clear at all.

We're still debating the meaning of nearly all statutes in the US constitution 242 years later. Some in the legal community have declared "consensus" by case law, but even those end up getting changed and overturned all the time.

> So if you're not making money, and you're not established as a business you should be okay.

I've got a shared hosting service where I run WordPress for a blog. As such I have no direct control over the web server, nor what my hosting provider might decide to record of information, nor do I have time to audit what WordPress changes for each update.

Since I'm a programmer by trade, and my blog deals with programming, it's reasonable to assume someone might consider my blog "professional or commercial activity". Maybe I'm saved by some hard criteria defining "professional or commercial activity", but to be frank, it's not worth my time going through the entire GDPR to find that out.

As such I'm not going to take the risk of being in violation and will be shutting down my blog. Instead I'll likely be reverting to posting on Google+ or Facebook, if I bother posting more at all.