There is no virtue in running 3rd or 4th. Pretending that there is, for example that you get to avoid the scrutiny of being the frontrunner, is wishful thinking. It is also bizarre wishful thinking on the part of Sanders supporters, since (a) Sanders has already proved that he can certainly stand up to this scrutiny better than any candidate on the dais, and (b) his supporters, as supporters, should be confident of this.
Whether the lack of Sanders coverage is real or not, or whether it is a corporatist plot or not, is pretty irrelevant; even if true, complaining about it isn’t going to help Bernie. At best it will make people feel vindicated if he does badly, which won’t help us out of our national predicament.
Bernie is polling 2nd in some national polls, which is excellent news for him since Biden is unlikely to go the distance. However, he really needs to do well in Iowa. He’ll do well in New Hampshire, but that will be dismissed since he’s a neighbor, and and will probably do badly in South Carolina because Biden is running so strong there. (There’s also Nevada, where he has a good chance, but that hardly has any impact.)
Sanders has a good shot in Iowa, where his near-tie in 2016 gave legs to his campaign, and if he wins he’ll start getting better press coverage again, but if he comes in 3rd or worse there his campaign will probably be in real trouble.
Meanwhile, oh good, I see Tulsi is being mentioned again:
Alas, not where I live. Trust me, not getting covered is probably good for Tulsi.
Please explain what you mean by “bad ideas”.
For example, putting acolytes of the Jagad Guru into key positions in her campaign.