[Michael Chandra]

If you want Noise to be any reasonable threat to Street Sams, Datajacks shouldn't stack. Otherwise for cheap they can just go and say 'any noise you can reasonably throw at us won't impact me'. Knowing that Noise 3 can happen in e.g. the CCZ, and arming yourself with a Datajack and hoping you never hit Noise 4, is fair. Throwing in 4 and going 'can't touch this', is silly.

[Jack_Spade]

Stacking Datajacks are far from the most efficient way to get noise compensation:
A datajack has 1 NC/1k¥

Fresnel Fabric has between 2 and 1,166 NC/1k¥
Vectored Signal Filter Module has 2,5 NC/1k¥  or 1,53 NC/1k¥ if you need to hardwire it to your device
Datascrub has 8 NC/1k¥ (if you can spare a slot) or 1,21 NC/1k¥ if you need to hardwire it to your device,
Antennae have 2 NC/1k¥
Receiver Dongle 5 NC/1k¥

Literally every other option here is more cost effective than drilling holes in your head - and that is without counting the essence loss.
So really, it's a non-issue.

[Marcus]

Stacking Datajacks are far from the most efficient way to get noise compensation:
A datajack has 1 NC/1k¥

Fresnel Fabric has between 2 and 1,166 NC/1k¥
Vectored Signal Filter Module has 2,5 NC/1k¥  or 1,53 NC/1k¥ if you need to hardwire it to your device
Datascrub has 8 NC/1k¥ (if you can spare a slot) or 1,21 NC/1k¥ if you need to hardwire it to your device,
Antennae have 2 NC/1k¥
Receiver Dongle 5 NC/1k¥

Literally every other option here is more cost effective than drilling holes in your head - and that is without counting the essence loss.
So really, it's a non-issue.

You're missing the essence cost.

[Marcus]

BGC and Noise are mechanics that imposed simply to be pain to players, force them to expend resources, it's the SR equivalent of a feat tax.
Sense the beginning of gaming it's been shown that penalties are a less effective, less interesting game design. It's much more interesting and engaging to player to flip them, and require the player do or have something to take advantage of that bonus.

[Jack_Spade]

Literally every other option here is more cost effective than drilling holes in your head - and that is without counting the essence loss.
So really, it's a non-issue.

You're missing the essence cost.

Not missing. Essence is just not that easy to quantify in regard to opportunity cost. But since almost every option here is essence free (even the antennae can be mounted with capacity), datajack become even worse as an option.