I bought the english ones here in the US and wondering whether or not I should make the effort to scan it.

No. You really shouldn't. That's a gross, obvious case of copyright infringement solely for the purpose of providing an available, legally sold and translated product to a group that simply doesn't wish to pay.

Scanlations typically use the defense that they are localizing a product that would otherwise be unavailable and illegible to a region. This doesn't fit here.

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