Disable dht in torrent client?

Question

bittorrent

as I understand it (not special), the exchange in the same utorrent goes via http, where everything is perfectly visible. letters are created by bots according to a certain copy-you-know-whom template and only then are they sent by the provider to the client.
will disabling dht in a torrent somehow affect the situation?
"a friend of mine" got something similar, where you can see what he downloaded, from where and when. such awareness of the big brother is somewhat alarming and makes you think not about torrents, but about privacy.