I've tried DoubleList, with mixed success, same with CL under "missed connections". It's hit or miss what makes it through, and what gets flagged. I put in one (on CL) that was pretty forward, and instantly flagged. I tried it reworded more carefully, and flagged again. I tried the most innocent, "I think we exchanged glances at (local coffee shop)", and instantly flagged. But if you look, there are posts where guys are pretty blunt, that are still up there, without issue.
I've tried sniffies (dot-com). I've tried grndr. I come here more to read for tips, and to share experiences, because i haven't found any active feeders in my area, but I do keep hoping.
I could be busier, but I have to get a vibe on someone before I send out an invite. If they start "address?", before "hi", I usually don't bother. And I get that all the time--messages that are "send address", and nothing else.