Hey there,
It looks like you're trying to create your own meme.
Know Your Meme is actually a site for documenting existing internet phenomena, and examining how and why they grow like they do. It's sort of a field manual to Internet memes in the wild.
The meme database is for documentation but is not a promotional tool.
For what you're trying to do, you might want to try submitting your creations to Buzzfeed, Digg, Reddit, or spreading them through whatever online communities you frequent.
Your Titanic Twitter account could amount to something, but trying to jump-start it within the KYM community is just not something that we do.
In regard to documenting the Titanic as a meme:
The titanic is a meme, sure, but calling it an internet phenomenon would be a huge oversight.
The sinking of the titanic, its media coverage throughout history, all of fiction that has referenced it, and the way that the word has become an aphorism for monumental failures are all things that occurred before the internet.