The misconception that someone who doesn't time travels doesn't stand a chance it's just that, a misconception. People should actually try/see/test before spreading blatant lies.
And other than that, and quoting the PvP sticky:
Apart from those in the rules there isn't usually any item restriction.
Since ATMA Bugged items still split SPF’s opinions and the same can be said, in a lower
degree, for bringing forward items from older versions or characters levelled in older
versions, if you'd prefer dueling without it feel free to let the other players know.
That way they can swap characters or some items.
Who really wants to PvP in SPF with us has several information available and can see we are constantly trying to help with gear, strategy and ideas for builds. And who bothers to read what is available can see that we can even accommodate who doen't want to duel versus 1.07/8 Shako, Arkaine's, Wizzy, Valk and Crafts, 1.07 Maxers, 1.08 HLW, 1.10a BKWB and 1.10s CtA and Bramble.
Even if such gear doesn't increase your life that much. The only character that really changes a lot is the Bowazon, and maybe the (lol) Rabies druid (frozzzen's one is not lol tho, that stuff is tier 0!) Edit: And to some degree 105fcr vita sorcs.
PvP Skills > PvP Time travelling gear. Or else I'd never lose a game
Speaking for myself, getting all that gear was mostly for the challenge and fun. I'm sure I wouldn't be still playing if I only had 1.13d targets and goals. Every person has their own challenges, many players like to try several builds and mat/pat a lot in 1.13d. Gripphon and others want best efficiency possible in 1.13d. Me and some others like to hunt items in every version.
Who really wants to duel versus people that only have gear found in 1.13d. I guess they are in the wrong forum because most/all people who traded did it or didn't mind getting tainted, and this forum never encouraged a restart after 1.11 and banned time travelling.