Resources to identify pro contact p&d0s on tumblr:
This is a list of common dogwhistles pro contact p3*0philes use to find each other and minors here on tumblr.
Before I list these, I beg you to understand that many of the things in this list are used by minors to attract adults. Please do not target these minors. Reach out to them if you can to help get them out of this situation. Don't further alienate them by treating them badly or being unkind to them. They are putting themselves in a risky situation and most of the adults interacting with them are p3d0s who want to take advantage of them. Be the change or at least dont make it worse. Don't badmouth a minor who is currently being groomed by adults. (But also dont treat them like uwu softie children who know no better, that wont get you anywhere)
Without further ado, here are the things I've seen so far:
'18' - 18 or other ages between apostrophes, to indicate this is not their real age
18 ;) or definitely 18 ;3 - also to indicate this is not their real age
18 (-4) or 30÷2-1 - the result of the equation will be their real age
'ask for my favorite number' or 'my fav number is 16' - the fav number is their real age
'I have 15 stuffies' - the number of things is their real age
'mdni' - mdni between apostrophes to indicate that they don't actually mean for minors to stay away
🗺 - the map emoji - MAP = minor attracted person
🍕 - the pizza emoji is Cheese Pizza - it means CP (ch*ld p*rn)
🍈 - idk what this one means, but they usually use the melon emoji and the pizza emoji together
Here is an example of a conversation that involves 🍕 (go fucking report this account btw)
Some of these tags are used by other communities, like l0lisho is used by the lolisho community (not a community of pro contact p3d0s) but if you see the lolisho tag + some of the others you can assume you're looking at a post made by a pro contact p3d0
Using teleguard or session. Many people use these apps because they are relatively safe to send nudes through. But they are extremely common among p3d0s, so I always check twice when I see someone has teleguard or session.
Some of them have their follow list open so you can click that and check to see if they follow any minors.
Sometimes, you won't see these things explicitly in their blogs. That's why almost every time someone new follows me, i go through their blog and see if they rebloged anything from a minor. I click on at least 5 blogs they rebloged stuff from and check these 5 blogs to make sure I don't find any dogwhistles. I know... long and annoying... who tf has time for that?
Well, at least now yall know some dogwhistles and can avoid the ones that are very explicit abt it.
Block and report their blogs when you see them. Help destroy their community here.
Thank you for the help @functioning-minne-holic