Does it worth risking being shadow banned to check the exact IV combination?
Answers
Not even remotely worth it. You can usually just use a power up or two to narrow it down if it's a mon you really care about. Regarding the attack stat, sometimes it's possible to use a 1 or 2 star raid to calculate which one it is due to breakpoints, but it's a bit of a hassle.
Really neither of those pokemon have any relevant breakpoints, so just ignore their IVs considering they're not high either way.
Well why would you use Croatia as a tank? Even Xatu might fair better, you can use that as part of a solo squad while I don't think Crobat will cut it
Powering Espeon at that sort of IV is a really desperate thing... Is a machamp solo today worth the dust wasted? You really could wait it out for a high level eevee or abra and accomplish the same
As long as you have clear the consequences of a shadow ban (a state which can last up to 4 weeks), during which you will only encounter specific non-evolved common wild pokemons.
Aside from that, the game is pretty much the same (although I have heard rumors that during this time, there is no chance of receiving ex-raid invitations).
If you can endure this possible consequence, go for it.
Sadly they do care to shadow ban for iv checkers for some reason.
Idk why are they so ignorant in that niantic company. Just rework Pokémon show screen and give us a/d/h stats. Make a hide button for "casuals" aka braindead people who cant handle few numbers so they wont get "confused".
Problem solved. A lot of time saved. Nonsense stopped...
Nope. Nope nope nope.
Particularly not for such low IV Pokémon, and such common Pokémon (well, Esperon is a bit more difficult to get, but still - get an Eevee, walk it 10km in the day, evolve it while it's your buddy, get Esperon, and Eevee's are pretty common - particularly when weather boosted).
Assume they have the Worst IV's for you (which may or may not mean the lowest IV's by the numbers; a 75% that's Def 15 Sta 15 Attk 5 is worse for me than an IV 65% that's Def 7, Sta 7, Attk 15) and be pleasantly surprised if you're wrong. Don't risk being banned for those particular Pokémon.
(or really ANY Pokémon.)