My opinion has panned out more or less as one might expect. Wrong about the outcome of the election? Sure. Wrong about the outcome of how the overturn went? Sure. But nothing outrageous and well within the margin of error.
I hope you realize that there is a great deal of difference between cancelling a pipeline that will have little to no effect on domestic or foreign affairs for the US is very, very different than packing the Supreme Court. And doing so would most likely lead to an outright slaughter in the mid-terms. Especially if SCOTUS were to condemn the action. And it would immediately force the Republicans to respond in kind. And given that the Democrats tend to be out of power more often than the Republicans when it comes to Congress, such a move would only serve to cripple the Democrats once the Republicans returned the favor. And they would return the favor.
Biden is most probably going to look at ways of trimming SCOTUS's power. The whole point of using the judiciary to create laws was because the Democrats could never form a consensus on their own, so legislation was never going to happen. Right now, if Congress were to try and pass gay marriage, it would probably not make it through the Senate. Even with the Democrats holding both. If they can't do that, what makes you think that going for broke and packing the court is a good idea?