1) the main dev (BCNext) no longer posts directly to this thread but you purport to communicate with him and speak for him about the project, something we can't confirm,
Yes.
2) the deadline for contributing BTC to acquire Nxt, which was originally described as being open until the genesis block was approved by the community sometimes at least a month from now, is now suddenly declared over with no advance warning;
Yes. He is working on genesis block now that why deposits r not accepted.
3) the BTC that were already sent to acquire Nxt, which the main dev (BCNext) promised earlier in this thread not to touch until the genesis block was generated, have now been moved.
Yes. The bitcoins weren't touched to avoid accusations that he reuses them to increase his own Nxt stake. Now, when deposits r not accepted there is no sense to keep them untouched.