What are the harms of traction after all?

[Peteleco]

I ve seen people saying that traction can have negative effects of worsening condition.

In which chases traction can be bad?

[Lostandsad]

You can injure your penis if you use too much tension with a traction device. You can also injure your penis if you stretch too hard with manual traction.

I think the general consensus here is long hours(3-5+ daily) of mechanical traction with low tension with a device like the PMP.
There are other users like NeoV who swear by manual traction though, but other members argue that you cannot gauge how much tension you use with manual traction, deeming it ineffective, or not as effective as mechanical traction.