Wrong, he was attaching what he thought was a zipped sample by changing the file type to .txt to get round the fact that the forum doesn't accept zip files. The fact that he wasn't aware that in attaching it as a .txt file would screw up the zip format is neither here nor there, the act was to deposit what was considered an infected sample on the forums.
So the statement I made is correct, "We don't want the avast support forums to be used as a repository for malware distribution, please remove the attachment. "
Repository (the word I used), is also somewhat different from giving a direct link as the contents wouldn't be stored on the avast forums.