In this question, I posted the following answer, which was unilaterally deleted by a moderator:
UAPs got here somehow.
So, about a month ago [at the time I wrote this answer, in July 2021] the United States government has issued a report on Unidentified Aerial Phenomena (UAPs), which is basically the modern US government term for UFOs, stating that they're real, they're not American, they do things beyond our current understanding of physics, and they don't know what they are. The actual wording of the report seems to be couched in deliberate understatement, but that's what the facts as presented by the report boil down to. Indeed, the information in the report was significant enough that Avi Loeb, the professor in charge of Astronomy at Harvard University, has begun a project to place meter-wide automated telescopes across the country in the hopes of capturing high-resolution images of them.
If the UAPs are extraterrestrial (rather than extradimensional, time travelers, a prehuman species living in habitats in unexplored areas on the bottom of the ocean, or something similar), then presumably they got to Earth somehow. This implies that interstellar dust isn't a problem for interstellar space flight, or at least whatever form of interstellar flight that they originally used to arrive here.
There's a lot of open questions about what UAPs are, how they work, and where they come from, but I suppose you could consider their existence evidence that interstellar travel may be possible.
The moderator left the following comment, which was completely incorrect:
nick - your post doesn't even attempt to answer the question, but just seems like you took an opportunity to post some badly thought out rant. Please read our tour and How to Answer pages again.
Not only was this answer not in any way a rant, it did answer the question that had been asked about interstellar dust posing a hazard to spaceflight - namely, that there is evidence that it doesn't pose a hazard to interstellar flight (or that the hazard can be mitigated), because the UAPs got here somehow if theyre extraterrestrial spacecraft.
My answer was heavily downvoted, presumably because of lingering bias against UAP, even though they are now officially recognised by the US government and studied by mainstream academics, but I don't think that the moderator should have unilaterally deleted my answer like this.
Could my answer please be undeleted?