I was reading this answer comments: ambiguous package name 'libgdk-pixbuf2.0-0' with more than one installed
There are few links to logs uploaded to paste.ubuntu.com back to June 2012. All of them were removed from the site.
As for myself, I used to include only links in my questions or questions I edited.
So does paste.ubuntu.com remove any snippet looking only into its age only, without tracking its use?
If so, then it is better to keep users aware of that and push to follow Jeff Atwood♦'s advice here: How should users share long log files?
It is generally a bad idea to post enormous log files. Who is going to read an enormous wall of text? It's a disincentive to answering.
Generally, try to post the most relevant section of the log file, then link to the full file elsewhere.
Give it a shot, at least.. since the full file is linked, it's the best of both worlds.
I used to include long script as link. As they will be removed just after 3 years. This seems to me a serious issue. It should be mentioned well & clear in the help pages or may even notify the new users when they include links.
Why I got that expectation of long live paste? paste.ubuntu.com is an official Ubuntu site & Ubuntu basically provide support for 5 years to LTS server releases.