I was on your side for a minute and then I googled you. This is what I see when I google Movim:

Movim – Responsive web-based cross-platform XMPP client

That's your end user messaging?

I'm now more in GP's camp of "Developers not understanding what a typical user would look like."

Also your homepage is confusing: https://movim.eu/ I'm a developer, I read the article, and your homepage really contradicts my expectation that you provide Tumblr-like functionality.