Given the long list of "breaking changes" and "Deprecated or removed" I think it is premature to suggest that they are moving towards stability.
15 karma · joined December 9, 2015
Open Source is just the ultimately precise but horribly inconvenient documetnation.
FYI here are your answers...
WordCloud[StringTake[WordList[], 1], WordSpacings -> 10] (* spaced out * )
WordCloud[StringTake[WordList[], 1], Binarize[CurrentImage[]]] (* shaped like your face * )
twitter = ServiceConnect["Twitter"]; ServiceExecute[twitter, "ImageTweet", Image ->WordCloud[StringTake[WordList[], 1]]] ( * Tweet a wordcloud *)
For that kind of detail, you will always want the documentation http://reference.wolfram.com/language/ref/WordCloud.html