Not if you don't want to risk intervention or people prying into your life as well as interrogating and assessing you on whether or not you are a threat to yourself or others. It is one of those things you just don't say (think of it like it's as bad as self-incrimination or confession of a crime that you never committed in an interrogation). At least that's how I see the situation.
I know it can be tempting and feeling like it's a sigh of relief, but this is rather just false comfort and security, meaning that the moment you say something about CTB'ing, hinting at it, or anything that raises a red flag, things will become worse for you, not just with pro-lifers (anti-choicers) projecting their will onto you as well as making your life more difficult than it currently is. Another example is like if you committed a crime (hypothetically speaking) you wouldn't go announcing it to the world, would you? (Rhetorical question).