With regards to reading FR graphs, it is part experience, part the art of interpretation, and part total bullsh*t. I think that trying to hone in on ultra specific elements on an FR graph (ie. a 1dB difference in elevation at 7khz or minutiae of a similar variety) is a complete waste of time; instead one needs to step back from it all and try to get an idea of the overall proportions of the graph. You most certainly are not going to get a full picture of how something sounds just off measurements alone, but they can still be mildly indicative of what sort of aural silhouette one can expect from a given transducer. If you really, really want to learn how to read FR, I strongly suggest buying an IEC 711 coupler of your own (knockoffs are really cheap on Taobao or similar Chinese marketplaces) and measuring quite literally everything and anything you can get your hands on after listening to it. Building up a repertoire of graphs and understanding how what I was actually hearing translated to points on a line were really how I taught myself to understand what matters and what doesn't in a measurement.
With regards to DSP, it's pretty straightforward. I find the minimum phase (and linear phase too, for that matter, but to a much lesser extent) filters used in basically all DSP functions to be highly destructive to transients and timbre. Everything, whether it's digital or physical, has a sound, and the more things you have in the signal path, the more variables you add to the equation. I also find the idea of having to fix a manufacturer's mistakes for them using EQ philosophically abhorrent. If a transducer cannot sound good on its own terms, then it is simply not worth my time and effort. The less "correction" one has to do to keep components in line, whether it's through brute force methods like DSP or more ephemeral tugging and nudging by trying to synergistically match opposites in components (e.g. a warm DAC with a cold amp), the better.
As for future content, expect some new reviews soon; I have been itching to write about something for a while. I also have some ideas for a large, long form essay aimed at the more philosophical aspects of audio, but I cannot promise that it will materialize into something worth publishing anytime soon, if ever. The last time I made this claim, it never turned into anything, so do not be surprised if this one ends up with the same fate.