When you land on dmty.pl, you aren't staying there long. The domain exists primarily to funnel traffic to demotywatory.pl, a well-known Polish site for internet memes and humor. Because of this, don't expect a functional website with a homepage or detailed identity information. It is essentially a digital bridge.
From a technical perspective, the site is clean. It carries the same security protocols you would expect from a modern web portal and has a long history dating back to 2016. There is no indication of phishing or malware, and it doesn't try to collect your data.
If you find yourself asking if dmty.pl is a scam, the answer is no. It is simply a branded short-link used by the main site to keep things accessible. Whether you arrived here from a bookmark or an old link, you are being directed exactly where you intend to go. There is no reason for concern while browsing this site, as its sole purpose is to get you to the intended community portal.