Irregularly, i only change my dp/sig when i force myself to make the effort to find/make new gifs tat i like enuf to see on my posts enuf to not run away screaming from KS forum, in the 2 yrs +change iv been on forums, maybe 4 or 5 times. So quite few comparatively. But my eyes glaze sigs/dps i get accustomed to anyway, n i used to hv mobile ios so nvr saw the sigs 4 a long time unless i was in a cyber cafe. Which is to say, sigs/dp make more of an impression on me when its unfamiliar kinda-so i dont feel the need to change it too often. Witness my current sig is so outdated now but idc. LOL (mebbe ill change if im inspired enuf by the show[after] on 27th Dec 2020)