Because the EU as a whole is quite happy to censor and generally wield the same tricks as "non-Western" countries in their desires to combat misinformation (however our EU bureaucrats define it), child abuse materials (see Chat Control that thing is not going to go away), and hatred (oh boy).
We've never guaranteed the right to free speech and because we haven't it's a slippery slope all the way back down to the furnaces of autocracy we sprang from.
The Spanish president has come out on record saying we don't deserve anonymity on the internet.
Not sure why you get downvoted. EU censors quite a bit. I can't read about 10 Telegram channels that I could access just 3 years ago, and the list is growing.
All due to "vioalted laws of [my country]". (said near-east related channels have nothing to do with my country, government just doesn't want me to read them)
Some people deemed "russian assets" are not just censored, but stripped of ability to leave EU and prevented from being able to live in EU at the same time by financial sanctions, etc. Of course this doesn't happen to actual politicians in power, for whatever reason those never get sanctioned by EC, despite doing more "damage" than random blabberheads on twitter.
"EU" doesn't censor anything, there isn't even any authority nor infrastructure that could do that.
Individual countries, like Spain, does have a bunch of censorship though, this is pretty clear and evident already. But I think if you want to share something useful or even informative, you need to add what country this experience of yours is about, because it's not true in any/every EU country.
Other ways EU censors centrally are EU wide travel bans that individual countries can issue to prevent political speech by foreigners, under the guise of preventing "incitement" and preserving "stability". Doctor Ghassan Abu Sitta from UK is one prominent example.
Yet other way EU censors centrally are EC sanctions on individual journalists or "journalists" to prevent them from any economic activity within EU, incl. publishing.
Other way EU censors centrally is via DSA, which results in seemingly random bans of channels on "social media" like Telegram, under the guise of fighting "terrorism". Basically this way it tries to silence people it otherwise supports killing without due process.
We've never guaranteed the right to free speech and because we haven't it's a slippery slope all the way back down to the furnaces of autocracy we sprang from.
The Spanish president has come out on record saying we don't deserve anonymity on the internet.