I haven't noticed more women than men posting. I don't tend to look at people's gender anyway. I find it too distracting to be clicking profiles all the time as I'm reading a thread. I care more about things like whether they have Type 1/a pump/use the same insulin, etc.
Some problems might affect women more than men, or vice versa, but I reckon we all have more in common than we have separating us
If you're struggling with injections or they're painful, then maybe talk to your DSN about possibly trying a different length needle.