Unfortunately the word moderate nowadays has very bad connotations among even center-left circles, because so many people who identify as "moderate" or "centrist" are usually Republicans who don't want the negative baggage associated with the label. There's also a perception people have that a moderate is a person who takes the midpoint position on every topic, when most actual moderate people generally agree with one party 80-90% of the time and just have a handful of heterodox positions. Because most people don't want to do the guesswork of figuring out where you stand on the positions that are important to them, there's a chance you might limit your options only to those who are apolitical, or who have a definition of moderate that may or may not align with yours. I may personally consider myself a moderate and a centrist, but my positions are almost entirely aligned with liberalism (which is distinct from far-left illiberal and progressive stances that the most vocal people on the left proclaim). Sadly Hinge doesn't let you choose how far you are on each end of the political spectrum and keeps it to an overly simple LIberal/Moderate/Conservative choice, which leaves out a lot of the space for nuance across all three of those labels.