1. Even if I'm really free right now, I'll probably abandon it. Damn my laziness.
Then put up a warning or something on the first page. Or let another person continue it if they really like it.
Anyway, one thing to do is not update as soon as everyone's there, but at your earliest convinience. Like, say, when there's nothing else to distract yourself with.
4. Many will go all "tl;dr".
You'd think so, but not really. And many of those who do likely aren't the kind of crowd you should/want to attract anyway.
5. A lot of times I think an idea is really good, but get bored of it soon. I'll probably get tired of this one too.
I know that feeling. But you could start another simotanious RTD in a much different universe. That
may help, but remember that I'm not speaking from experience... yet.
Yes, I'm thinking of starting another RTD. But the chance of me actually starting it is low.6. I always find flaws in my RTDs like "no plot", "shitty mechanics", "railroading", "limited content", "too easy", "too hard" and etc. and lose all enthusiasm.
I know that feeling. The plot is kinda hard to fix. The mechanics can be fixed anytime (for example, I fixed mine in the middle of the game with no people voting against it and 3 out of 8 voting for it). The railroading isn't that bad if the players are just lollygagging around like idiots (the alternative is many boring turns). Too easy can be fixed with harder enemies. Too hard can be fixed with shiny weapons.
Edit: Also at this rate I'll probably earn a really bad reputation and no one will play my RTDs at all.
Well, there's a few ways to avoid this:
Make one or two long lasting RTDs (like your Tom's dungeon crawl). The players will try to forget you abandoning the shorter ones.
Make the RTDs you do make hilarious if they have to be short.
Make the RTDs you make long lasting.
Wait a while between RTDs. Players will start to forget about your failures and entirely new people will start playing.
I'm sure there are plenty of other ways, but I can't think of any more off the top of my head.
4. Tl;DR Doesn't count considering the size of some RTDs (Read: Draignean's) intros. Those are HUMUNGOUS.
Indeed.
And believe me, no-one will hate you for making a few RTDs that die off.
Well, I will if they die early. It makes me look on those GMs with distrust that they'll be able to keep an RTD going.