I realise I said "significant" above, so that prompts a question: how much is a "significant" amount of assistance? In addition to figuring out the parsing of some clues, I have sometimes looked to the forum for help while still working on my solution, for two main things: (a) clarification or understanding of the rubric, in a few cases where it was a bit convoluted or unclear, and the thoughts of more experienced solvers were useful, and (b) getting started with a few clues when I've been making no or slow progress. In both these cases it's a question of getting moving quicker: I've never felt that something I've read has meant that I've solved something I wouldn't otherwise have solved, just that other people's thoughts have saved me a bit of time and confusion and frustration. So I've never had any hesitation about sending in my solution once completed, even in these cases. I would estimate that about two-thirds of the puzzles I complete entirely before looking at this forum at all, and I'm happy to say that this one, my first prize award, was one of those!
To be honest, thinking about what appears in these threads, when things are running smoothly/properly, like at the moment, I don't think I'd criticise anyone for submitting their solution if they'd just consulted this forum and asked for hints -- for most puzzles, the vast majority of the clues are not mentioned at all in the forum, and we're pretty good on the whole at maintaining a degree of hint-giving and only indirect nudges about the theme, so even if someone has taken everything they can find on this forum as help for their solving I think they've still produced the bulk of the solution themselves. This is one of the reasons I like this forum as a source of hints and discussion -- there are other places that Listener clues and solutions are discussed with less discretion, and I deliberately avoid those as I wouldn't feel happy about submitting an answer if I'd had (intentionally or not) more significant/blatant help.