Strange for a woman to show up to a new shul? Ok, maybe for a 19 year old, but for someone who is 22-24, this should not be such a hurdle.
Still, my Mrs (who is way more than 24) will not go to a shuir without a friend, even though they are there to listen and not to talk. I guess its a woman thing. Either way, days one thru 10, you might be viewed with suspicion, but after a few weeks, the open minded people will see that they are dealing with someone who is stable and personable. And no, you will not convince each and every person. But those people are not the ones you are concerned about. Focus on the ones who do take an interest in you (or her, if someone else is reading this) and let Hashem work His magic.
Besides, from what I’m seeing here, the traditional shadchan route is very crowded, very competitive and very fustrating. And seemingly, very hard to get noticed in the tumult.
Def time for a new way of tackling this issue.