The tone of letters does allow for a more personal and spiritual take on what is said. As if you were heeding advice from a more experienced close friend of yours.
More reading:
Letters to a Young Poet
Moral Letters to Lucilius
You should never put water on contact lenses as water is a strong vector of bacterial infection. I'm glad you haven't lost your eyesight (probably because the contacts fell while swimming with those).
If we could achieve near-light speed, how would time work for those traveling at that speed relative to the universe ? Wouldn't time "feel" normal but "stopped" relative to the other slower bodies of the universe ? As such, couldn't that near-light speed "slow down" the rate at wich we see the expansion of the universe, making possible star traveling ?
If it is anonymous and unfiltered, it is possible to shit-spam it. Write some server that can find proxies and write random words from dictionaries to fill up so that it becomes impossible to filter the mean from the nonsense.
Gotta take them by their game ! However, if it grows with too many people that have the free time to post (ala 4chan) this strategy becomes too difficult. For a highschool, shouldn't be too difficult ?
Btw, I don't know the specifics of the "app", but it could be done, even, with basic captcha imo.
Enhanced support for LaTeX options:
"It is now possible to specify custom delimiters (e.g. for beamer's <overlay> options)."
Layout enhancements:
"The beamer layout has undergone a major revision. Some long-standing drawbacks were removed, and some important beamer-specific features (such as overlay options) are now supported natively. Contributed by Jürgen Spitzmüller."
More reading: Letters to a Young Poet Moral Letters to Lucilius