I agree with Lionden it really is hit or miss and not everyone does the custom searches for top week, day, etc. If it's not on the front page it can go unnoticed for a while. Good eye catching screenshots help to make it stand out along with good titles. I personally run my track right after publishing incase someone wants to look at a replay first, but that's just theory if it helps at all. Other than that doing a thread here with a video or request a play on Oregon Pacifist track central Thursday YouTube helps a bit. I liked your tracks so far btw, I'll check out your new one after work today.
I appreciate the effort you and other builders put in. I'll see if I can find yours later, in between playing the latest expansion.
Your best shot of getting more downloads is probably to apply for a job at RedLynx, become the EP or Lead Designer, and implement the basic obvious common sense low hanging fruit fixes that many people have posted about here since launch, which they have shown they don't give a damn about.
If we had search criteria like "by a builder I have favorited", the rest would probably work itself out, between that, friends liked, trending, and the rest. That'd be a huge improvement for such a minor feature. Another way to go about it would be showing our accumulated up/down votes on each creator, then adding creator-percent-liked field to the search criteria. A general track-percent-liked search field would also help ferret out tracks that are worth checking, though all individual track vote related things are severely hampered by our limited feedback options. Naturally, letting us set the visible feeds to use our saved searches does a lot to take these feature into more active/immediate use, too.
The user contracts system I keep suggesting would also do a lot for keeping good tracks from getting missed or forgotten, but it'd be a little effort.
The game is terrible for discovery as things are, and even worse for retention. If there were an API to access TC metadata, someone could build a nice little site to augment the game's short-sighted management.
None of that helps people without RL doing something, though, and we don't know if that's on the table at all. I don't know where people ought to get the word out. I'll check out anything that goes in GUS's weekly roundup, gets mentioned in the Track Central forum here, gets in one of the staff picks lists (even as minimal and poorly done as those are), is by a builder I pay attention to (though I certainly don't check that constantly, since it's a pain to do), or gets mentioned on the Trials reddit. If I have the game open and feel up for it, I'll dig through recent tracks and trending for things that look legitimate so I can contribute my insignificant thumbs, but I often don't lately. The depressing state of the game makes it harder to enjoy, for me.