exclusion of feeds for provided tags

[a-sajjad72]

Hello. Thanks for creating a such great platforms for developers. I am really impressed with it's browser extension. But I found some things missing that what if a person want to exclude some tags from its feeds. Let me explain it what I am trying to say.
I don't want to see the webdev tagged feeds and also I hadn't subscribed it. but I had subscribed opensource tag. A post containing opensource and webdev is showing on my feed because it has a opensource tag.
Can it be possible??? I know it's a kind of foolish feature but I want to know.