Most assuredly not trolling. The path I went down 30 years ago was to explore everything that seemed to matter for getting the best sound quality, and the big thing at the time was contact enhancers. Tweak, Cramolin were in all the audio stores, and I gave them a shot. They seemed to work , but the SQ always ended up going off - they worked in the short term, but only ended up making things worse. This drove me crazy, and in an "I'll show you!" mode of thought I decided to solder, at both ends, just to see what happened - this was all about experimentation - and, it worked. The SQ was better, and most importantly, it stayed better.
So, I made it a pattern to solder everything I could, and, it's always worked. The "why" is that it eliminates a significant amount of the edgy, vaguely disturbing quality in playback, that makes you want to turn the volume down when "bright" recordings are played - the more you get rid of conventional pressure connections, the more that edginess disappears.