There is no rule about not posting to old threads. But what you aren't supposed to do, is post to a thread that has nothing to do with your problem.
(And that is why there is a warning message for old threads, saying that the thread is old and you should
consider whether it would be better to start a new thread... because it "may contain outdated information". But the thread is not auto-locked, because old age isn't an inherent proof of irrelevance.)
Still, mistakes happen, no big deal.

Although in future, try to keep in mind that not everything that has to do with Debian necessarily has to do with the same problem.
...
I have no idea why Debian would uninstall a package just because you are doing a dist-upgrade... frankly, I prefer rolling-release distros (like Arch) in part because you don't have to deal with dist-upgrades. Dist-upgrades tend to break things and you ultimately end up backing up all your data and doing a clean reinstall.
But perhaps somehow as a result of aborting a dist-upgrade, you ended up with incompatible packages. At any rate, wget is apparently broken due to mismatched wget and libnettle packages... so something is deeply wrong with your system's dependency tree. There might be more than just wget that broke.
...
Slightly confused now, because `ldd /usr/bin/wget` on my system does not report a dependency on libnettle.so.*

not that I think you are lying.
EDIT:
This explains a lot, Arch uses the openssl backend and I guess debian uses gnutls which itself links against nettle. So congrats -- you have a borked gnutls on your system.