No, you get a link that looks like a direct link (eg https://i.imgur.com/whatever.png) but it's not (always) a direct link. This is what people are complaining about. Sending that link to people sometimes results in them getting redirected to the ad-laden imgur page.
I've seen the direct links get redirected to the non-direct page on desktop.
It appears to still happen if, e.g., the link is on Twitter - random example https://twitter.com/SilentRENE/status/735732252877819904 (seems to be inconsistent - first time I was redirected, but now it goes directly to the image. Opening the Twitter page in another browser also resulted in a redirect)
Like I said, that hasn't happened to me ever in the couple of years that I've used that method. The people I send links to would complain. I do believe you though—sounds like something they'd do.
probably they only do it IFF the image receives a sustained rate of visualizations?
That would explain why it didn't happen to you (nor me) for "simple" usage.