P.S.
Indeed "we are going to communism" was well-known idea in soviet times. It was on the posters often and so on.
So, it is difficult for old people to forget it. However new generations (including mine) do not know it often and thinks that "if communist party was only party in USSR, so it was communistic too". Moreover this is used sometimes as "marker of the political ignorance" in political disputes.
But term "socialism" is associated with USSR very often.