I've recently set out to try to standardize the older generations of MLP, and that's opened a big can of worms when it comes to dealing with character tags that's been left to fester for the past decade unaddressed, so it's time to finally talk about it.
While this issue doesn't affect my BUR to deal with copyright tags, it does cause some issues on how to go forward with handling characters.
For anyone unfamiliar, the MLP franchise loves to reuse characters - not as the same characters, but by making new iterations of them. Which would be all fine and dandy were it not for this site's big MLP suffix problem.
When this site was made, FIM was sort of treated as the default, and everything else was side-lined, as can be seen by the fossil that is the *_(pre-g4) suffix. But now we have a fifth generation of MLP that's popular on its own, and more people acknowledging that the older generations have always and will always have their fanbases as well. With the exception of G2, all generations of the franchise have hundreds of images on this site.
This has been brought up a good handful of times before, but no one's really sure what to do about this and no one wants to deal with the hundreds of tags.
I've seen it said that Rainbow Dash doesn't need a suffix because her name is unique, but that isn't true - she shares a name with a G3 character, and the current *_(mlp) suffix, while most people understand refers to the more popular FIM character, doesn't actually clear that up. It adds nothing, not actually serving the purpose of a disambiguation suffix.
It's not much of an issue for characters like RD, but then you get to minty_(mlp_g3) - the most popular Minty, yes, but the franchise has four Mintys, that were all sharing one tag until yesterday.
...So yeah, I think we need to figure something out when it comes to how to deal with those damn ponies.