I do have an account at lichess, where I play rarely. My rating at classical is about 1570.There is also a rating for training (which basically involves solving riddles, like the questions at elometer). There I have a rating around 1850, which is very close to my Elometer rating. This is the case with roeczak, too (2000 classical rating, 2200 training rating, 2255 Elometer rating). So I think what Elometer estimates is your rating at solving chess problems (training rating), which is most often higher than your true level because you have as much time as you want to think and analyse the situation before you.
To be honest, I've never taken chess seriously. I may play or solve problems occasionally, but nothing more. Chess is a game of logic, so it suits as a hobby to smart people, but familiarity with the game is essential. I've played with roeczak several times and still play every now and then (he generally kicks my butt but as far as I recall I have managed to clinch 1 or 2 victories in total ) and he tells me that I often make good moves based on logic, but with zero experience to different game situations in comparison to him I usually don't stand a chance. I regret to say - being aware of roeczak's long-term engagement in chess - that it's too late for me to start taking chess seriously now. Stratego offers far more prospects to me (apart from the fact that it's a very interesting game), so I've decided to take this hobby seriously, instead.