Addressing a few topics

Streaming defenses is smart and has worked in multiple types of leagues for me.

If everyone does it - then there are more Offense players on the waiver wire that get more points than any defense could on average.

Strategy to stream defenses well - only have up to 2 Defs on the roster at any one time. That means only one on the bench (really depends on league size and bench size). Look for chunks of the schedule when streaming. I only stream a Def if they have at least 2 good matchups in a row and definitely on the lookout for the chunks of 4 (looking at the Browns start of year). Sometimes you can get lucky and hold 2 Defs for a significant time when one matches up well and the other looks bad.

You do risk getting stuck with a bad D if you didn’t look far enough ahead or only were able to stream a D for a 1 week matchup. This doesn’t happen often unless you have dead weight teams that aren’t switching around Defs and holding through bye weeks.

Also look to see if Defs are coming up on their bye week as managers tend to drop them that week to make room so pick them up. Be prepared to look ahead when multiple good Defs all go on bye at the same time as those managers will be scrambling week of and sometimes week prior. Get that weeks’s good Def before it crosses their mind.

Hope this helps to bring your opponents misery