Found some good advice from a blogger.
This isn't gendered, but goes for men and women -
if anyone feels they have to pursue/persuade someone, they'd end up with someone who was lukewarm about them but just with them as it was the "easy" option?
So either they'd end up with someone passive in the interaction, or someone who was keeping half an eye out for someone better.
And ideally you want a relationship of equals where both parties are suggesting stuff and indicating interest in each other and respectful of each others schedules.
She was more in favour of "mirroring"? Someone does X, do X back. So show interest, but don't do all the work -
(someone who is going "oh, persuade me" is going to be a f**g nightmare special snowflake type to interact with).
So go by views/winks to show interest rather than composing e-mails.
Or send a SHORT e-mail and see if someone responds. And again, look for "mirroring".
(just something like "interesting profile, please do look at mine. All the best").
I found sometimes online I'd have people who'd reply just to pass the time/for attention/to have a penpal, and this is draining on ones time and self-esteem.
I found after a while after a few e-mails exchanged it was best to close with:
"nice chatting to you, do drop me a line if you fancy meeting for a coffee/drink some time! I'm on 07*. Enjoy your evening.".
That distinguished those who wanted to just chat endlessly with those who were serious about finding someone and at least looked like their photos IRL so weren't scared of meeting!
I did meet a few boyfriend material guys, though eventually I met someone offline.