My view of signs and wonders in these days, which i consider the times just before the return of Jesus, Is that Christians have to be very wary of them for two reasons..
1) Because their is a lot of fake scamming of Christians going on and it is fairly easy to set up a fake video of healing going on..
2) Because in the end times deceivers will have the ability to do false signs and lying wonders.. So that if it where possible they would fool even the very elect of God...
I am not saying that all modern signs and wonders are of satan.. I have been involved in two such events .. A healing and a partial healing.. But i am sure that miracles are being performed with the assistance of demonic spirits.. We read in the Bible a very serious warning of what will be happening in the last days::
2 Thessalonians 2: KJV
3 "Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; {4} Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God. {5} Remember ye not, that, when I was yet with you, I told you these things? {6} And now ye know what withholdeth that he might be revealed in his time. {7} For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way. {8} And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming: {9} Even him, whose coming is after the working of Satan with all power and signs and lying wonders, {10} And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. {11} And for this cause God shall send them strong delusion, that they should believe a lie: {12} That they all might be damned who believed not the truth, but had pleasure in unrighteousness."
So God will allow false miracles to happen in the end times to cause people who have rejected the Love of the truth ( the true Gospel message of the LORD Jesus Christ) to believe in a lie and be lead into eternal destruction.. We read that on the day of Judgement many of these people who believed that they where serving Jesus and performing miracles will be rejected by Jesus:::
Matthew 7: KJV
21 "¶ Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven. {22} Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works? {23} And then will I profess unto them, I never knew you: depart from me, ye that work iniquity."
So these people declare Jesus as Lord on the day of judgement and they did these things thinking they where serving Jesus.. But in the end Jesus casts them out..
So the most important thing i believe in these times is to look past any miracles or signs being performed and wait to see what doctrines and teachings the ones doing them believe and preach..