DO NOT BUMP STICKIES. bumping puts posts at the top of the page. Hello, sticky--stickies are ALWAYS at the top of the page.
Trunks and events are utterly random. You could post non stop for a month and never get one, or post once a blue moon and get one each time to log in to Gaia. You never know when it'll happen.
Some people are luckier than others and get events more regularly.
True story: it took me about a month or so to start getting my first events after joining in October. In decemeber and January my events happened ever week or so for awhile (usually a pink link on the front page in one of the sponser links late at night). In early March, I got 3 pink boxes in a week's worth of time, but only earlier this week did I get my 4th pink box ever.
I personally think that the more regularly you post (not more often, just the consistancies of posting for awhile about everyday) gives you more time and chances to get events, but it doesn't mean you WILL get events.