Parent's use case is for (abandoned) DOS programs, which hardly qualify as "personal data". Having said that, sure, if one has no options, everything left is "pretty good".

I've left Qwen38-27b to reverse a tiny DOS program (few hundred bytes), and after more than an hour it was still struggling with debugger traces, misinterpreting basic DOS calls, and had produced no finished analysis. Possibly after a few hours it may have succeeded (surely with mistakes to find and correct), but then it'd look like a monkey at a typewriter more than else.

Qwen3.8-Flash-Next is another level for sure, and it's a significant milestone for local LLMs IMO, since it can run on midrange GPUs, as long as there is a relatively large amount of system RAM (still not cheap). It's quite fast, although it also need to be taken into account that it's just moderately intelligent - if you observe the CoT while reversing, you'll find that struggles, performing many unproductive actions as well.