The fundamental flaw in this voting system is clearly exampled by both Blackguards and Lords of Xulima being so low, 84 and 86 respectively.
What you've done,
Lady Error , and possibly
felipepepe is ask people to vote for their top 25 RPGs. By only allowing people to vote for 25 your asking people to provide a top 25 poll, not a top 100 poll. As a result, pretty much every game, other than the usual 20 to 30 suspects, will be competing for the remaining 15 to 25 places. So you get the usual top 10-20 and then the rest of the poll is ranking the leftover over votes.
You're asking if Blackguards or Lords of Xulima are top 25 RPGs. Even if someone really liked these games, it's going to be hard for someone considering 40 years of RPGs to put them firmly in their own personal top 25, but many people might have put them at 26-30.
So, many top 25-50 games are being unfairly penalised by being 25-50 ranked games.
Let's say someone plays and enjoys just one RPG per year for 40 years, they're not being asked to vote for games they like, they're being asked not to vote for games they like. They're being asked to eliminated some favourites.
Meanwhile, someone who barely ever plays RPGs, but some RPGs are their favourite games, might only have played 25 RPGs in their entire life and just vote for all 25 of those, even if they didn't really like them that much, in their head their 25th is the crap one they only voted for because at least they'd played it. Someone's shittiest RPG might be their personal 25th, where as someone who's enjoyed lots of RPGs, many more than 25, and who wants to give positive results to more than 25 games, and who's 25th game is still, in their eyes, really great, is being forced to stick to the same old games year in year out.
That was a major factor in what made me make my poll exhaustive rather than exclusionist.