That may be a more challenging thing. Lots of people do stupid things, sometimes even illegal things, but does not have nearly the impact on their ability to 'funded' as one might guess. For every investor who will say "No" there is another who will say "I don't care what he did or does if I get a 10x return on my investment!" Kind of sad but also true.
That said, in the Bay area at least where the valley is pretty "small" in terms of reputation there are people who have worn out their welcome and moved on. Not because they can't get funded but because they can't put together a team any more of people willing to work with them. I know a couple who have "done a geography" [1] and have started elsewhere. I feel really for the people who bought into the company and went to work there only to have this happen.
[1] A friend of mine who counseled people used the term 'do a geography' which was when a person moved to a completely new place to escape the 'bad things' that were going on where they were. Sometimes that helps, sometimes not.