Click here for the article. It's news to me. In Houston there are no data caps, or at least none I know of. Two years ago they lifted them. If this article is true they will be imposing data caps again. Elsewhere in the forum I reported that Comcast had no caps, so felt the need to post this apparent 'correction'.
If Comcast will be doing it, so will others. Looks like the approach is to have X amount per month 'free' (included in your subscription), then charge extra for going over the limit.
This will matter a lot since Windows 10 updates are mandatory and large.. and slow.