typically 30 calendar days for U.S. companies and 60 calendar days for most U.S. banks and non-U.S. companies. If the company files complete required reports during the grace period, the "E" will be removed; if it does not, the company's stock symbol will be removed from trading on the OTCBB.
SEC rule17(b) does not prohibit free speech. It does not prohibit spamming, online newsletters, posting on message boards, without other activity as well. But lying to investors, or failing to disclose compensation, does violate the law