Yeah I'm not even sure where I stand. But ultimately I'd never blame candidates for putting themselves first. Ultimately the detriment of you being honest to a firm is that they just hire one of the many other people banging at their doors for a TC and forget all about you. The detriment to the candidate is having no TC, and doing a whole other cycle that may or may not be successful.I don't particularly agree - I had conflicting VS last year, where one had a TC option and the other did not. I chose the one without the TC, and the other PFOed me from their TC app with what seemed like extra zeal.
Ultimately there are plenty of other quality candidates and it's risky to be too open about what you're up to.
I do see the argument some people make about 'taking a spot' from another student, but then I'm not sure how fair that is, unless it's a scheme where everyone on it can convert.