You have the power to exclude yourself from the 'Find a Player' search feature.
If someone is bothering you in chat, you can always use the 'Block Chat' option. To do this, right-click on the player's image, and in the window that opens, click on the Chat icon in the top right corner. As it says when you hover over the icon, it'll 'Block all chat from' this specific player. This feature, though, is not available on mobile devices, yet.
Some players are just trying to get a reaction from you. We recommend ignoring them or blocking their chat so you can enjoy the rest of your game.