Yes, many things just don't seem normal to me. The DA's office being involved is just one of them, others you guys have already mentioned - no publicity, no friends surfacing other than MMQC, even after posts were made on the Staten Island site and IIRC the college alumni Facebook page too. Then there's the fact that the MP report was taken down from namus shortly after we started getting involved in her case. A family member being told not to contact bf/f. Something just seems off to me.
Anna Scivetti went missing from Staten Island in the 90s after an argument with her boyfriend. The cases are similar but the way they were handled couldn't be more opposite. Anna's boyfriend has been named everywhere. He's had reporters in his face. There are lots of news articles which clearly name him as a suspect.
The 20-something difference in era could be a factor, so could the fact that Anna's boyfriend was married and had a criminal record. Perhaps Anna's family and friends are more persistent and the media is putting pressure on LE. LE seems very eager to find Anna. Sylvia, not so much,imo, and I'm not sure why.
Re: the missing person report being taken down from Namus-that bothered me, too, until I thought about so many of the other cases that we've seen here; Are there many cases on Namus where the police report is included? And who added it to Sylvia's Namus page in the first place? Did Sylvia's brother provide it, or did the 122 precinct?