I think the thing with online dating is that guys will swipe past because of an age so you don't even get the chance to chat to let alone meet them. I did have a real worry about this, particularly as I was approaching 40, which as we all know is the age all women become stooped crag worn hags with only cats for company.
I also don't look my age, so worried they might think my pictures were old! (I think a lot of people don't look their age, not trying to big myself up here!) I also kind of think people are more judgemental online than they would be IRL - so will swipe past people who are out of their 'cut off' when this wouldn't apply if they met them in the flesh.
The problem is, if you lie, then you could end up on a date with someone who is really judgemental about age, and who wants to deal with one of those idiots?! And anyone who does swipe past because of a cut off probably isn't worth bothering with anyway, so maybe it's better to sort the wheat from the chaff at the outset.
I personally wouldn't be annoyed at someone shaving a few years off. However as a woman looking for men, they are less likely to have to lie, as there is less pressure on them to be a certain age anyway! AND I am likelier to be more open minded about it, in part because I've faced this exact prejudice.
It really is bloody unfair!
The thing is, they may well have shaved a few years off themselves, fibbed about something else, or not be that bothered that you're - say 53, rather than 50.
Can I ask what the age you are and the age you were thinking of putting is?