Tell me the reason it is necessary for the project to create ANN on bitcointalk.
Although depending on different projects they have their own channels to discuss their issues privately, so I don't think it is an important issue.
It's necessary for me, for a new coin every publicity small or big should be considered, the coin has a huge potential for them not to need Bitcointalk for their announcement, Bitcointalk is a big publicity site, all discussions here are indexed in the search engine and open to all potential visitors, all I know they don't want to be criticized if they do not want to open a thread here.