SOTA-rules in Unwired used by the archetype hacker, Sense? Streamlining? Fun? Options

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1) Using legal programs except for the perfectly legal decoy-commlink is suicide for the hacker because of the datatrail
2) A hacker must use cracked programs for the illegal commlink and/or illegal options.
3) Cracked programs degenerate
4) Degenerating programs are: hacking/malware programs, common programs with a rating (they are listed in Unwired on page109), autosofts, skillsofts (active, knowledge, lingua), operating systems, agents.
5) Software like tutorsoft, mapsoft or datasoft sensorsoft does not seem to degenerate
6) A hacker can use a crack network to get cracked patches and updates.
7) Patching its own system is not possible due to the time involved. Or you don´t have a hacker for the team because is will be patching 24/7

The archetype hacker in the BBB has the following programs and OS system:
(yes, I know that he has no exploit program and cannot hack anything, and yes, I know that an Unwired hacker would have more and higher programs => higher costs, even more rolls).

hacking programs - cracked patch availability roll - nuyen cost for cracked patch
Armor 4 - Avail 12 - 100¥
Attack 5 - 15 - 100¥
Biofeedback Filters 4 - Avail 12 - 100¥
Black Hammer 4 - Avail 12 - 100¥
Data Bomb 3 - Avail 9 - 100¥
Decrypt 3 - Avail 9 - 100¥
Spoof 4 - Avail 12 - 100¥
Stealth 5 - Avail 15 - 100¥
Track 4 - Avail 12 - 100¥

common programs:
Analyze 5 - Avail 5 - 10¥
Browse 5 - Avail 5 - 10¥
Command 5 - Avail 5 - 10¥
Edit 5 - Avail 5 - 10¥
Encrypt 5 - Avail 5 - 10¥
Scan 5 - Avail 5 - 10¥

OS programs:
System 5 - Avail 5 - 50¥
Firewall 5 - Avail 5 - 50¥

Total: at max you have to make 17 rolls (I assume that you can buy some successes for the common programs) and pay 1060¥ every two month (or 900¥ and 9 rolls every other month). And that is for a starting, non optimized hacker. An advanced hacker with a maxed commlink rating 6, skillsofts, agents, some mini/microdrones and one upgraded vehicles can easily double the neccessary rolls and costs each month.

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Is everything correct and truly intended by the authors?

If yes: why this complicated, time consuming system of bookkeeping? What is the game sense or purpose? Why not something simple yet elegant like "1% of your softwarecost each month"? Why do you have to roll a dozen time each month regardless of the possibility to trade dices for hits?

SYL