The term “frummer” is used, whether with a positive or negative connotation, to refer to keeping a more stringent halachic standard. By this commonly used definition, keeping extra chumros is synonymous with being “frummer”.
Rav Gifter ZTL used to say “A Galach (priest) is Frum, a Yid is Erlich”.
If I see someone with a skirt B’Davka 4 inches below (by watching them do the measurement, for example), I don’t make fun. I think Nebuch that someone was taught so wrong that they paid all that money for Bais Yaakov & Sem and still are Am Haratzos.